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a/venv/lib/python3.11/site-packages/sqlalchemy/util/__init__.py +++ /dev/null @@ -1,159 +0,0 @@ -# util/__init__.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php - - -from collections import defaultdict as defaultdict -from functools import partial as partial -from functools import update_wrapper as update_wrapper -from typing import TYPE_CHECKING - -from . import preloaded as preloaded -from ._collections import coerce_generator_arg as coerce_generator_arg -from ._collections import coerce_to_immutabledict as coerce_to_immutabledict -from ._collections import column_dict as column_dict -from ._collections import column_set as column_set -from ._collections import EMPTY_DICT as EMPTY_DICT -from ._collections import EMPTY_SET as EMPTY_SET -from ._collections import FacadeDict as FacadeDict -from ._collections import flatten_iterator as flatten_iterator -from ._collections import has_dupes as has_dupes -from ._collections import has_intersection as has_intersection -from ._collections import IdentitySet as IdentitySet -from ._collections import immutabledict as immutabledict -from ._collections import LRUCache as LRUCache -from ._collections import merge_lists_w_ordering as merge_lists_w_ordering -from ._collections import NONE_SET as NONE_SET -from ._collections import ordered_column_set as ordered_column_set -from ._collections import OrderedDict as OrderedDict -from ._collections import OrderedIdentitySet as OrderedIdentitySet -from ._collections import OrderedProperties as OrderedProperties -from ._collections import OrderedSet as OrderedSet -from ._collections import PopulateDict as PopulateDict -from ._collections import Properties as Properties -from ._collections import ReadOnlyContainer as ReadOnlyContainer -from ._collections import ReadOnlyProperties as ReadOnlyProperties -from ._collections import ScopedRegistry as ScopedRegistry -from ._collections import sort_dictionary as sort_dictionary -from ._collections import ThreadLocalRegistry as ThreadLocalRegistry -from ._collections import to_column_set as to_column_set -from ._collections import to_list as to_list -from ._collections import to_set as to_set -from ._collections import unique_list as unique_list -from ._collections import UniqueAppender as UniqueAppender -from ._collections import update_copy as update_copy -from ._collections import WeakPopulateDict as WeakPopulateDict -from ._collections import WeakSequence as WeakSequence -from .compat import anext_ as anext_ -from .compat import arm as arm -from .compat import b as b -from .compat import b64decode as b64decode -from .compat import b64encode as b64encode -from .compat import cmp as cmp -from .compat import cpython as cpython -from .compat import dataclass_fields as dataclass_fields -from .compat import decode_backslashreplace as decode_backslashreplace -from .compat import dottedgetter as dottedgetter -from .compat import has_refcount_gc as has_refcount_gc -from .compat import inspect_getfullargspec as inspect_getfullargspec -from .compat import is64bit as is64bit -from .compat import local_dataclass_fields as local_dataclass_fields -from .compat import osx as osx -from .compat import py310 as py310 -from .compat import py311 as py311 -from .compat import py312 as py312 -from .compat import py38 as py38 -from .compat import py39 as py39 -from .compat import pypy as pypy -from .compat import win32 as win32 -from .concurrency import await_fallback as await_fallback -from .concurrency import await_only as await_only -from .concurrency import greenlet_spawn as greenlet_spawn -from .concurrency import is_exit_exception as is_exit_exception -from .deprecations import became_legacy_20 as became_legacy_20 -from .deprecations import deprecated as deprecated -from .deprecations import deprecated_cls as deprecated_cls -from .deprecations import deprecated_params as deprecated_params -from .deprecations import moved_20 as moved_20 -from .deprecations import warn_deprecated as warn_deprecated -from .langhelpers import add_parameter_text as add_parameter_text -from .langhelpers import as_interface as as_interface -from .langhelpers import asbool as asbool -from .langhelpers import asint as asint -from .langhelpers import assert_arg_type as assert_arg_type -from .langhelpers import attrsetter as attrsetter -from .langhelpers import bool_or_str as bool_or_str -from .langhelpers import chop_traceback as chop_traceback -from .langhelpers import class_hierarchy as class_hierarchy -from .langhelpers import classproperty as classproperty -from .langhelpers import clsname_as_plain_name as clsname_as_plain_name -from .langhelpers import coerce_kw_type as coerce_kw_type -from .langhelpers import constructor_copy as constructor_copy -from .langhelpers import constructor_key as constructor_key -from .langhelpers import counter as counter -from .langhelpers import create_proxy_methods as create_proxy_methods -from .langhelpers import decode_slice as decode_slice -from .langhelpers import decorator as decorator -from .langhelpers import dictlike_iteritems as dictlike_iteritems -from .langhelpers import duck_type_collection as duck_type_collection -from .langhelpers import ellipses_string as ellipses_string -from .langhelpers import EnsureKWArg as EnsureKWArg -from .langhelpers import FastIntFlag as FastIntFlag -from .langhelpers import format_argspec_init as format_argspec_init -from .langhelpers import format_argspec_plus as format_argspec_plus -from .langhelpers import generic_fn_descriptor as generic_fn_descriptor -from .langhelpers import generic_repr as generic_repr -from .langhelpers import get_annotations as get_annotations -from .langhelpers import get_callable_argspec as get_callable_argspec -from .langhelpers import get_cls_kwargs as get_cls_kwargs -from .langhelpers import get_func_kwargs as get_func_kwargs -from .langhelpers import getargspec_init as getargspec_init -from .langhelpers import has_compiled_ext as has_compiled_ext -from .langhelpers import HasMemoized as HasMemoized -from .langhelpers import ( - HasMemoized_ro_memoized_attribute as HasMemoized_ro_memoized_attribute, -) -from .langhelpers import hybridmethod as hybridmethod -from .langhelpers import hybridproperty as hybridproperty -from .langhelpers import inject_docstring_text as inject_docstring_text -from .langhelpers import iterate_attributes as iterate_attributes -from .langhelpers import map_bits as map_bits -from .langhelpers import md5_hex as md5_hex -from .langhelpers import memoized_instancemethod as memoized_instancemethod -from .langhelpers import memoized_property as memoized_property -from .langhelpers import MemoizedSlots as MemoizedSlots -from .langhelpers import method_is_overridden as method_is_overridden -from .langhelpers import methods_equivalent as methods_equivalent -from .langhelpers import ( - monkeypatch_proxied_specials as monkeypatch_proxied_specials, -) -from .langhelpers import non_memoized_property as non_memoized_property -from .langhelpers import NoneType as NoneType -from .langhelpers import only_once as only_once -from .langhelpers import ( - parse_user_argument_for_enum as parse_user_argument_for_enum, -) -from .langhelpers import PluginLoader as PluginLoader -from .langhelpers import portable_instancemethod as portable_instancemethod -from .langhelpers import quoted_token_parser as quoted_token_parser -from .langhelpers import ro_memoized_property as ro_memoized_property -from .langhelpers import ro_non_memoized_property as ro_non_memoized_property -from .langhelpers import rw_hybridproperty as rw_hybridproperty -from .langhelpers import safe_reraise as safe_reraise -from .langhelpers import set_creation_order as set_creation_order -from .langhelpers import string_or_unprintable as string_or_unprintable -from .langhelpers import 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mode 100644 index e3a8ad8..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/util/_collections.py +++ /dev/null @@ -1,715 +0,0 @@ -# util/_collections.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php -# mypy: allow-untyped-defs, allow-untyped-calls - -"""Collection classes and helpers.""" -from __future__ import annotations - -import operator -import threading -import types -import typing -from typing import Any -from typing import Callable -from typing import cast -from typing import Dict -from typing import FrozenSet -from typing import Generic -from typing import Iterable -from typing import Iterator -from typing import List -from typing import Mapping -from typing import NoReturn -from typing import Optional -from typing import overload -from typing import Sequence -from typing import Set -from typing import Tuple -from typing import TypeVar -from typing import Union -from typing import ValuesView -import weakref - -from ._has_cy import HAS_CYEXTENSION -from .typing import is_non_string_iterable -from .typing import Literal -from .typing import Protocol - -if typing.TYPE_CHECKING or not HAS_CYEXTENSION: - from ._py_collections import immutabledict as immutabledict - from ._py_collections import IdentitySet as IdentitySet - from ._py_collections import ReadOnlyContainer as ReadOnlyContainer - from ._py_collections import ImmutableDictBase as ImmutableDictBase - from ._py_collections import OrderedSet as OrderedSet - from ._py_collections import unique_list as unique_list -else: - from sqlalchemy.cyextension.immutabledict import ( - ReadOnlyContainer as ReadOnlyContainer, - ) - from sqlalchemy.cyextension.immutabledict import ( - ImmutableDictBase as ImmutableDictBase, - ) - from sqlalchemy.cyextension.immutabledict import ( - immutabledict as immutabledict, - ) - from sqlalchemy.cyextension.collections import IdentitySet as IdentitySet - from sqlalchemy.cyextension.collections import OrderedSet as OrderedSet - from sqlalchemy.cyextension.collections import ( # noqa - unique_list as unique_list, - ) - - -_T = TypeVar("_T", bound=Any) -_KT = TypeVar("_KT", bound=Any) -_VT = TypeVar("_VT", bound=Any) -_T_co = TypeVar("_T_co", covariant=True) - -EMPTY_SET: FrozenSet[Any] = frozenset() -NONE_SET: FrozenSet[Any] = frozenset([None]) - - -def merge_lists_w_ordering(a: List[Any], b: List[Any]) -> List[Any]: - """merge two lists, maintaining ordering as much as possible. - - this is to reconcile vars(cls) with cls.__annotations__. - - Example:: - - >>> a = ['__tablename__', 'id', 'x', 'created_at'] - >>> b = ['id', 'name', 'data', 'y', 'created_at'] - >>> merge_lists_w_ordering(a, b) - ['__tablename__', 'id', 'name', 'data', 'y', 'x', 'created_at'] - - This is not necessarily the ordering that things had on the class, - in this case the class is:: - - class User(Base): - __tablename__ = "users" - - id: Mapped[int] = mapped_column(primary_key=True) - name: Mapped[str] - data: Mapped[Optional[str]] - x = Column(Integer) - y: Mapped[int] - created_at: Mapped[datetime.datetime] = mapped_column() - - But things are *mostly* ordered. - - The algorithm could also be done by creating a partial ordering for - all items in both lists and then using topological_sort(), but that - is too much overhead. - - Background on how I came up with this is at: - https://gist.github.com/zzzeek/89de958cf0803d148e74861bd682ebae - - """ - overlap = set(a).intersection(b) - - result = [] - - current, other = iter(a), iter(b) - - while True: - for element in current: - if element in overlap: - overlap.discard(element) - other, current = current, other - break - - result.append(element) - else: - result.extend(other) - break - - return result - - -def coerce_to_immutabledict(d: Mapping[_KT, _VT]) -> immutabledict[_KT, _VT]: - if not d: - return EMPTY_DICT - elif isinstance(d, immutabledict): - return d - else: - return immutabledict(d) - - -EMPTY_DICT: immutabledict[Any, Any] = immutabledict() - - -class FacadeDict(ImmutableDictBase[_KT, _VT]): - """A dictionary that is not publicly mutable.""" - - def __new__(cls, *args: Any) -> FacadeDict[Any, Any]: - new = ImmutableDictBase.__new__(cls) - return new - - def copy(self) -> NoReturn: - raise NotImplementedError( - "an immutabledict shouldn't need to be copied. use dict(d) " - "if you need a mutable dictionary." - ) - - def __reduce__(self) -> Any: - return FacadeDict, (dict(self),) - - def _insert_item(self, key: _KT, value: _VT) -> None: - """insert an item into the dictionary directly.""" - dict.__setitem__(self, key, value) - - def __repr__(self) -> str: - return "FacadeDict(%s)" % dict.__repr__(self) - - -_DT = TypeVar("_DT", bound=Any) - -_F = TypeVar("_F", bound=Any) - - -class Properties(Generic[_T]): - """Provide a __getattr__/__setattr__ interface over a dict.""" - - __slots__ = ("_data",) - - _data: Dict[str, _T] - - def __init__(self, data: Dict[str, _T]): - object.__setattr__(self, "_data", data) - - def __len__(self) -> int: - return len(self._data) - - def __iter__(self) -> Iterator[_T]: - return iter(list(self._data.values())) - - def __dir__(self) -> List[str]: - return dir(super()) + [str(k) for k in self._data.keys()] - - def __add__(self, other: Properties[_F]) -> List[Union[_T, _F]]: - return list(self) + list(other) - - def __setitem__(self, key: str, obj: _T) -> None: - self._data[key] = obj - - def __getitem__(self, key: str) -> _T: - return self._data[key] - - def __delitem__(self, key: str) -> None: - del self._data[key] - - def __setattr__(self, key: str, obj: _T) -> None: - self._data[key] = obj - - def __getstate__(self) -> Dict[str, Any]: - return {"_data": self._data} - - def __setstate__(self, state: Dict[str, Any]) -> None: - object.__setattr__(self, "_data", state["_data"]) - - def __getattr__(self, key: str) -> _T: - try: - return self._data[key] - except KeyError: - raise AttributeError(key) - - def __contains__(self, key: str) -> bool: - return key in self._data - - def as_readonly(self) -> ReadOnlyProperties[_T]: - """Return an immutable proxy for this :class:`.Properties`.""" - - return ReadOnlyProperties(self._data) - - def update(self, value: Dict[str, _T]) -> None: - self._data.update(value) - - @overload - def get(self, key: str) -> Optional[_T]: ... - - @overload - def get(self, key: str, default: Union[_DT, _T]) -> Union[_DT, _T]: ... - - def get( - self, key: str, default: Optional[Union[_DT, _T]] = None - ) -> Optional[Union[_T, _DT]]: - if key in self: - return self[key] - else: - return default - - def keys(self) -> List[str]: - return list(self._data) - - def values(self) -> List[_T]: - return list(self._data.values()) - - def items(self) -> List[Tuple[str, _T]]: - return list(self._data.items()) - - def has_key(self, key: str) -> bool: - return key in self._data - - def clear(self) -> None: - self._data.clear() - - -class OrderedProperties(Properties[_T]): - """Provide a __getattr__/__setattr__ interface with an OrderedDict - as backing store.""" - - __slots__ = () - - def __init__(self): - Properties.__init__(self, OrderedDict()) - - -class ReadOnlyProperties(ReadOnlyContainer, Properties[_T]): - """Provide immutable dict/object attribute to an underlying dictionary.""" - - __slots__ = () - - -def _ordered_dictionary_sort(d, key=None): - """Sort an OrderedDict in-place.""" - - items = [(k, d[k]) for k in sorted(d, key=key)] - - d.clear() - - d.update(items) - - -OrderedDict = dict -sort_dictionary = _ordered_dictionary_sort - - -class WeakSequence(Sequence[_T]): - def __init__(self, __elements: Sequence[_T] = ()): - # adapted from weakref.WeakKeyDictionary, prevent reference - # cycles in the collection itself - def _remove(item, selfref=weakref.ref(self)): - self = selfref() - if self is not None: - self._storage.remove(item) - - self._remove = _remove - self._storage = [ - weakref.ref(element, _remove) for element in __elements - ] - - def append(self, item): - self._storage.append(weakref.ref(item, self._remove)) - - def __len__(self): - return len(self._storage) - - def __iter__(self): - return ( - obj for obj in (ref() for ref in self._storage) if obj is not None - ) - - def __getitem__(self, index): - try: - obj = self._storage[index] - except KeyError: - raise IndexError("Index %s out of range" % index) - else: - return obj() - - -class OrderedIdentitySet(IdentitySet): - def __init__(self, iterable: Optional[Iterable[Any]] = None): - IdentitySet.__init__(self) - self._members = OrderedDict() - if iterable: - for o in iterable: - self.add(o) - - -class PopulateDict(Dict[_KT, _VT]): - """A dict which populates missing values via a creation function. - - Note the creation function takes a key, unlike - collections.defaultdict. - - """ - - def __init__(self, creator: Callable[[_KT], _VT]): - self.creator = creator - - def __missing__(self, key: Any) -> Any: - self[key] = val = self.creator(key) - return val - - -class WeakPopulateDict(Dict[_KT, _VT]): - """Like PopulateDict, but assumes a self + a method and does not create - a reference cycle. - - """ - - def __init__(self, creator_method: types.MethodType): - self.creator = creator_method.__func__ - weakself = creator_method.__self__ - self.weakself = weakref.ref(weakself) - - def __missing__(self, key: Any) -> Any: - self[key] = val = self.creator(self.weakself(), key) - return val - - -# Define collections that are capable of storing -# ColumnElement objects as hashable keys/elements. -# At this point, these are mostly historical, things -# used to be more complicated. -column_set = set -column_dict = dict -ordered_column_set = OrderedSet - - -class UniqueAppender(Generic[_T]): - """Appends items to a collection ensuring uniqueness. - - Additional appends() of the same object are ignored. Membership is - determined by identity (``is a``) not equality (``==``). - """ - - __slots__ = "data", "_data_appender", "_unique" - - data: Union[Iterable[_T], Set[_T], List[_T]] - _data_appender: Callable[[_T], None] - _unique: Dict[int, Literal[True]] - - def __init__( - self, - data: Union[Iterable[_T], Set[_T], List[_T]], - via: Optional[str] = None, - ): - self.data = data - self._unique = {} - if via: - self._data_appender = getattr(data, via) - elif hasattr(data, "append"): - self._data_appender = cast("List[_T]", data).append - elif hasattr(data, "add"): - self._data_appender = cast("Set[_T]", data).add - - def append(self, item: _T) -> None: - id_ = id(item) - if id_ not in self._unique: - self._data_appender(item) - self._unique[id_] = True - - def __iter__(self) -> Iterator[_T]: - return iter(self.data) - - -def coerce_generator_arg(arg: Any) -> List[Any]: - if len(arg) == 1 and isinstance(arg[0], types.GeneratorType): - return list(arg[0]) - else: - return cast("List[Any]", arg) - - -def to_list(x: Any, default: Optional[List[Any]] = None) -> List[Any]: - if x is None: - return default # type: ignore - if not is_non_string_iterable(x): - return [x] - elif isinstance(x, list): - return x - else: - return list(x) - - -def has_intersection(set_, iterable): - r"""return True if any items of set\_ are present in iterable. - - Goes through special effort to ensure __hash__ is not called - on items in iterable that don't support it. - - """ - # TODO: optimize, write in C, etc. - return bool(set_.intersection([i for i in iterable if i.__hash__])) - - -def to_set(x): - if x is None: - return set() - if not isinstance(x, set): - return set(to_list(x)) - else: - return x - - -def to_column_set(x: Any) -> Set[Any]: - if x is None: - return column_set() - if not isinstance(x, column_set): - return column_set(to_list(x)) - else: - return x - - -def update_copy(d, _new=None, **kw): - """Copy the given dict and update with the given values.""" - - d = d.copy() - if _new: - d.update(_new) - d.update(**kw) - return d - - -def flatten_iterator(x: Iterable[_T]) -> Iterator[_T]: - """Given an iterator of which further sub-elements may also be - iterators, flatten the sub-elements into a single iterator. - - """ - elem: _T - for elem in x: - if not isinstance(elem, str) and hasattr(elem, "__iter__"): - yield from flatten_iterator(elem) - else: - yield elem - - -class LRUCache(typing.MutableMapping[_KT, _VT]): - """Dictionary with 'squishy' removal of least - recently used items. - - Note that either get() or [] should be used here, but - generally its not safe to do an "in" check first as the dictionary - can change subsequent to that call. - - """ - - __slots__ = ( - "capacity", - "threshold", - "size_alert", - "_data", - "_counter", - "_mutex", - ) - - capacity: int - threshold: float - size_alert: Optional[Callable[[LRUCache[_KT, _VT]], None]] - - def __init__( - self, - capacity: int = 100, - threshold: float = 0.5, - size_alert: Optional[Callable[..., None]] = None, - ): - self.capacity = capacity - self.threshold = threshold - self.size_alert = size_alert - self._counter = 0 - self._mutex = threading.Lock() - self._data: Dict[_KT, Tuple[_KT, _VT, List[int]]] = {} - - def _inc_counter(self): - self._counter += 1 - return self._counter - - @overload - def get(self, key: _KT) -> Optional[_VT]: ... - - @overload - def get(self, key: _KT, default: Union[_VT, _T]) -> Union[_VT, _T]: ... - - def get( - self, key: _KT, default: Optional[Union[_VT, _T]] = None - ) -> Optional[Union[_VT, _T]]: - item = self._data.get(key) - if item is not None: - item[2][0] = self._inc_counter() - return item[1] - else: - return default - - def __getitem__(self, key: _KT) -> _VT: - item = self._data[key] - item[2][0] = self._inc_counter() - return item[1] - - def __iter__(self) -> Iterator[_KT]: - return iter(self._data) - - def __len__(self) -> int: - return len(self._data) - - def values(self) -> ValuesView[_VT]: - return typing.ValuesView({k: i[1] for k, i in self._data.items()}) - - def __setitem__(self, key: _KT, value: _VT) -> None: - self._data[key] = (key, value, [self._inc_counter()]) - self._manage_size() - - def __delitem__(self, __v: _KT) -> None: - del self._data[__v] - - @property - def size_threshold(self) -> float: - return self.capacity + self.capacity * self.threshold - - def _manage_size(self) -> None: - if not self._mutex.acquire(False): - return - try: - size_alert = bool(self.size_alert) - while len(self) > self.capacity + self.capacity * self.threshold: - if size_alert: - size_alert = False - self.size_alert(self) # type: ignore - by_counter = sorted( - self._data.values(), - key=operator.itemgetter(2), - reverse=True, - ) - for item in by_counter[self.capacity :]: - try: - del self._data[item[0]] - except KeyError: - # deleted elsewhere; skip - continue - finally: - self._mutex.release() - - -class _CreateFuncType(Protocol[_T_co]): - def __call__(self) -> _T_co: ... - - -class _ScopeFuncType(Protocol): - def __call__(self) -> Any: ... - - -class ScopedRegistry(Generic[_T]): - """A Registry that can store one or multiple instances of a single - class on the basis of a "scope" function. - - The object implements ``__call__`` as the "getter", so by - calling ``myregistry()`` the contained object is returned - for the current scope. - - :param createfunc: - a callable that returns a new object to be placed in the registry - - :param scopefunc: - a callable that will return a key to store/retrieve an object. - """ - - __slots__ = "createfunc", "scopefunc", "registry" - - createfunc: _CreateFuncType[_T] - scopefunc: _ScopeFuncType - registry: Any - - def __init__( - self, createfunc: Callable[[], _T], scopefunc: Callable[[], Any] - ): - """Construct a new :class:`.ScopedRegistry`. - - :param createfunc: A creation function that will generate - a new value for the current scope, if none is present. - - :param scopefunc: A function that returns a hashable - token representing the current scope (such as, current - thread identifier). - - """ - self.createfunc = createfunc - self.scopefunc = scopefunc - self.registry = {} - - def __call__(self) -> _T: - key = self.scopefunc() - try: - return self.registry[key] # type: ignore[no-any-return] - except KeyError: - return self.registry.setdefault(key, self.createfunc()) # type: ignore[no-any-return] # noqa: E501 - - def has(self) -> bool: - """Return True if an object is present in the current scope.""" - - return self.scopefunc() in self.registry - - def set(self, obj: _T) -> None: - """Set the value for the current scope.""" - - self.registry[self.scopefunc()] = obj - - def clear(self) -> None: - """Clear the current scope, if any.""" - - try: - del self.registry[self.scopefunc()] - except KeyError: - pass - - -class ThreadLocalRegistry(ScopedRegistry[_T]): - """A :class:`.ScopedRegistry` that uses a ``threading.local()`` - variable for storage. - - """ - - def __init__(self, createfunc: Callable[[], _T]): - self.createfunc = createfunc - self.registry = threading.local() - - def __call__(self) -> _T: - try: - return self.registry.value # type: ignore[no-any-return] - except AttributeError: - val = self.registry.value = self.createfunc() - return val - - def has(self) -> bool: - return hasattr(self.registry, "value") - - def set(self, obj: _T) -> None: - self.registry.value = obj - - def clear(self) -> None: - try: - del self.registry.value - except AttributeError: - pass - - -def has_dupes(sequence, target): - """Given a sequence and search object, return True if there's more - than one, False if zero or one of them. - - - """ - # compare to .index version below, this version introduces less function - # overhead and is usually the same speed. At 15000 items (way bigger than - # a relationship-bound collection in memory usually is) it begins to - # fall behind the other version only by microseconds. - c = 0 - for item in sequence: - if item is target: - c += 1 - if c > 1: - return True - return False - - -# .index version. the two __contains__ calls as well -# as .index() and isinstance() slow this down. -# def has_dupes(sequence, target): -# if target not in sequence: -# return False -# elif not isinstance(sequence, collections_abc.Sequence): -# return False -# -# idx = sequence.index(target) -# return target in sequence[idx + 1:] diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/util/_concurrency_py3k.py b/venv/lib/python3.11/site-packages/sqlalchemy/util/_concurrency_py3k.py deleted file mode 100644 index 5717d97..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/util/_concurrency_py3k.py +++ /dev/null @@ -1,290 +0,0 @@ -# util/_concurrency_py3k.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php -# mypy: allow-untyped-defs, allow-untyped-calls - -from __future__ import annotations - -import asyncio -from contextvars import Context -import sys -import typing -from typing import Any -from typing import Awaitable -from typing import Callable -from typing import Coroutine -from typing import Optional -from typing import TYPE_CHECKING -from typing import TypeVar -from typing import Union - -from .langhelpers import memoized_property -from .. import exc -from ..util import py311 -from ..util.typing import Literal -from ..util.typing import Protocol -from ..util.typing import Self -from ..util.typing import TypeGuard - -_T = TypeVar("_T") - -if typing.TYPE_CHECKING: - - class greenlet(Protocol): - dead: bool - gr_context: Optional[Context] - - def __init__(self, fn: Callable[..., Any], driver: greenlet): ... - - def throw(self, *arg: Any) -> Any: - return None - - def switch(self, value: Any) -> Any: - return None - - def getcurrent() -> greenlet: ... - -else: - from greenlet import getcurrent - from greenlet import greenlet - - -# If greenlet.gr_context is present in current version of greenlet, -# it will be set with the current context on creation. -# Refs: https://github.com/python-greenlet/greenlet/pull/198 -_has_gr_context = hasattr(getcurrent(), "gr_context") - - -def is_exit_exception(e: BaseException) -> bool: - # note asyncio.CancelledError is already BaseException - # so was an exit exception in any case - return not isinstance(e, Exception) or isinstance( - e, (asyncio.TimeoutError, asyncio.CancelledError) - ) - - -# implementation based on snaury gist at -# https://gist.github.com/snaury/202bf4f22c41ca34e56297bae5f33fef -# Issue for context: https://github.com/python-greenlet/greenlet/issues/173 - - -class _AsyncIoGreenlet(greenlet): - dead: bool - - def __init__(self, fn: Callable[..., Any], driver: greenlet): - greenlet.__init__(self, fn, driver) - self.driver = driver - if _has_gr_context: - self.gr_context = driver.gr_context - - -_T_co = TypeVar("_T_co", covariant=True) - -if TYPE_CHECKING: - - def iscoroutine( - awaitable: Awaitable[_T_co], - ) -> TypeGuard[Coroutine[Any, Any, _T_co]]: ... - -else: - iscoroutine = asyncio.iscoroutine - - -def _safe_cancel_awaitable(awaitable: Awaitable[Any]) -> None: - # https://docs.python.org/3/reference/datamodel.html#coroutine.close - - if iscoroutine(awaitable): - awaitable.close() - - -def in_greenlet() -> bool: - current = getcurrent() - return isinstance(current, _AsyncIoGreenlet) - - -def await_only(awaitable: Awaitable[_T]) -> _T: - """Awaits an async function in a sync method. - - The sync method must be inside a :func:`greenlet_spawn` context. - :func:`await_only` calls cannot be nested. - - :param awaitable: The coroutine to call. - - """ - # this is called in the context greenlet while running fn - current = getcurrent() - if not isinstance(current, _AsyncIoGreenlet): - _safe_cancel_awaitable(awaitable) - - raise exc.MissingGreenlet( - "greenlet_spawn has not been called; can't call await_only() " - "here. Was IO attempted in an unexpected place?" - ) - - # returns the control to the driver greenlet passing it - # a coroutine to run. Once the awaitable is done, the driver greenlet - # switches back to this greenlet with the result of awaitable that is - # then returned to the caller (or raised as error) - return current.driver.switch(awaitable) # type: ignore[no-any-return] - - -def await_fallback(awaitable: Awaitable[_T]) -> _T: - """Awaits an async function in a sync method. - - The sync method must be inside a :func:`greenlet_spawn` context. - :func:`await_fallback` calls cannot be nested. - - :param awaitable: The coroutine to call. - - .. deprecated:: 2.0.24 The ``await_fallback()`` function will be removed - in SQLAlchemy 2.1. Use :func:`_util.await_only` instead, running the - function / program / etc. within a top-level greenlet that is set up - using :func:`_util.greenlet_spawn`. - - """ - - # this is called in the context greenlet while running fn - current = getcurrent() - if not isinstance(current, _AsyncIoGreenlet): - loop = get_event_loop() - if loop.is_running(): - _safe_cancel_awaitable(awaitable) - - raise exc.MissingGreenlet( - "greenlet_spawn has not been called and asyncio event " - "loop is already running; can't call await_fallback() here. " - "Was IO attempted in an unexpected place?" - ) - return loop.run_until_complete(awaitable) - - return current.driver.switch(awaitable) # type: ignore[no-any-return] - - -async def greenlet_spawn( - fn: Callable[..., _T], - *args: Any, - _require_await: bool = False, - **kwargs: Any, -) -> _T: - """Runs a sync function ``fn`` in a new greenlet. - - The sync function can then use :func:`await_only` to wait for async - functions. - - :param fn: The sync callable to call. - :param \\*args: Positional arguments to pass to the ``fn`` callable. - :param \\*\\*kwargs: Keyword arguments to pass to the ``fn`` callable. - """ - - result: Any - context = _AsyncIoGreenlet(fn, getcurrent()) - # runs the function synchronously in gl greenlet. If the execution - # is interrupted by await_only, context is not dead and result is a - # coroutine to wait. If the context is dead the function has - # returned, and its result can be returned. - switch_occurred = False - try: - result = context.switch(*args, **kwargs) - while not context.dead: - switch_occurred = True - try: - # wait for a coroutine from await_only and then return its - # result back to it. - value = await result - except BaseException: - # this allows an exception to be raised within - # the moderated greenlet so that it can continue - # its expected flow. - result = context.throw(*sys.exc_info()) - else: - result = context.switch(value) - finally: - # clean up to avoid cycle resolution by gc - del context.driver - if _require_await and not switch_occurred: - raise exc.AwaitRequired( - "The current operation required an async execution but none was " - "detected. This will usually happen when using a non compatible " - "DBAPI driver. Please ensure that an async DBAPI is used." - ) - return result # type: ignore[no-any-return] - - -class AsyncAdaptedLock: - @memoized_property - def mutex(self) -> asyncio.Lock: - # there should not be a race here for coroutines creating the - # new lock as we are not using await, so therefore no concurrency - return asyncio.Lock() - - def __enter__(self) -> bool: - # await is used to acquire the lock only after the first calling - # coroutine has created the mutex. - return await_fallback(self.mutex.acquire()) - - def __exit__(self, *arg: Any, **kw: Any) -> None: - self.mutex.release() - - -def get_event_loop() -> asyncio.AbstractEventLoop: - """vendor asyncio.get_event_loop() for python 3.7 and above. - - Python 3.10 deprecates get_event_loop() as a standalone. - - """ - try: - return asyncio.get_running_loop() - except RuntimeError: - # avoid "During handling of the above exception, another exception..." - pass - return asyncio.get_event_loop_policy().get_event_loop() - - -if not TYPE_CHECKING and py311: - _Runner = asyncio.Runner -else: - - class _Runner: - """Runner implementation for test only""" - - _loop: Union[None, asyncio.AbstractEventLoop, Literal[False]] - - def __init__(self) -> None: - self._loop = None - - def __enter__(self) -> Self: - self._lazy_init() - return self - - def __exit__(self, exc_type: Any, exc_val: Any, exc_tb: Any) -> None: - self.close() - - def close(self) -> None: - if self._loop: - try: - self._loop.run_until_complete( - self._loop.shutdown_asyncgens() - ) - finally: - self._loop.close() - self._loop = False - - def get_loop(self) -> asyncio.AbstractEventLoop: - """Return embedded event loop.""" - self._lazy_init() - assert self._loop - return self._loop - - def run(self, coro: Coroutine[Any, Any, _T]) -> _T: - self._lazy_init() - assert self._loop - return self._loop.run_until_complete(coro) - - def _lazy_init(self) -> None: - if self._loop is False: - raise RuntimeError("Runner is closed") - if self._loop is None: - self._loop = asyncio.new_event_loop() diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/util/_has_cy.py b/venv/lib/python3.11/site-packages/sqlalchemy/util/_has_cy.py deleted file mode 100644 index 7713e23..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/util/_has_cy.py +++ /dev/null @@ -1,40 +0,0 @@ -# util/_has_cy.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php -# mypy: ignore-errors - -import os -import typing - - -def _import_cy_extensions(): - # all cython extension extension modules are treated as optional by the - # setup, so to ensure that all are compiled, all should be imported here - from ..cyextension import collections - from ..cyextension import immutabledict - from ..cyextension import processors - from ..cyextension import resultproxy - from ..cyextension import util - - return (collections, immutabledict, processors, resultproxy, util) - - -_CYEXTENSION_MSG: str -if not typing.TYPE_CHECKING: - if os.environ.get("DISABLE_SQLALCHEMY_CEXT_RUNTIME"): - HAS_CYEXTENSION = False - _CYEXTENSION_MSG = "DISABLE_SQLALCHEMY_CEXT_RUNTIME is set" - else: - try: - _import_cy_extensions() - except ImportError as err: - HAS_CYEXTENSION = False - _CYEXTENSION_MSG = str(err) - else: - _CYEXTENSION_MSG = "Loaded" - HAS_CYEXTENSION = True -else: - HAS_CYEXTENSION = False diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/util/_py_collections.py b/venv/lib/python3.11/site-packages/sqlalchemy/util/_py_collections.py deleted file mode 100644 index dfb9af2..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/util/_py_collections.py +++ /dev/null @@ -1,541 +0,0 @@ -# util/_py_collections.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php -# mypy: allow-untyped-defs, allow-untyped-calls - -from __future__ import annotations - -from itertools import filterfalse -from typing import AbstractSet -from typing import Any -from typing import Callable -from typing import cast -from typing import Collection -from typing import Dict -from typing import Iterable -from typing import Iterator -from typing import List -from typing import Mapping -from typing import NoReturn -from typing import Optional -from typing import Set -from typing import Tuple -from typing import TYPE_CHECKING -from typing import TypeVar -from typing import Union - -from ..util.typing import Self - -_T = TypeVar("_T", bound=Any) -_S = TypeVar("_S", bound=Any) -_KT = TypeVar("_KT", bound=Any) -_VT = TypeVar("_VT", bound=Any) - - -class ReadOnlyContainer: - __slots__ = () - - def _readonly(self, *arg: Any, **kw: Any) -> NoReturn: - raise TypeError( - "%s object is immutable and/or readonly" % self.__class__.__name__ - ) - - def _immutable(self, *arg: Any, **kw: Any) -> NoReturn: - raise TypeError("%s object is immutable" % self.__class__.__name__) - - def __delitem__(self, key: Any) -> NoReturn: - self._readonly() - - def __setitem__(self, key: Any, value: Any) -> NoReturn: - self._readonly() - - def __setattr__(self, key: str, value: Any) -> NoReturn: - self._readonly() - - -class ImmutableDictBase(ReadOnlyContainer, Dict[_KT, _VT]): - if TYPE_CHECKING: - - def __new__(cls, *args: Any) -> Self: ... - - def __init__(cls, *args: Any): ... - - def _readonly(self, *arg: Any, **kw: Any) -> NoReturn: - self._immutable() - - def clear(self) -> NoReturn: - self._readonly() - - def pop(self, key: Any, default: Optional[Any] = None) -> NoReturn: - self._readonly() - - def popitem(self) -> NoReturn: - self._readonly() - - def setdefault(self, key: Any, default: Optional[Any] = None) -> NoReturn: - self._readonly() - - def update(self, *arg: Any, **kw: Any) -> NoReturn: - self._readonly() - - -class immutabledict(ImmutableDictBase[_KT, _VT]): - def __new__(cls, *args): - new = ImmutableDictBase.__new__(cls) - dict.__init__(new, *args) - return new - - def __init__( - self, *args: Union[Mapping[_KT, _VT], Iterable[Tuple[_KT, _VT]]] - ): - pass - - def __reduce__(self): - return immutabledict, (dict(self),) - - def union( - self, __d: Optional[Mapping[_KT, _VT]] = None - ) -> immutabledict[_KT, _VT]: - if not __d: - return self - - new = ImmutableDictBase.__new__(self.__class__) - dict.__init__(new, self) - dict.update(new, __d) # type: ignore - return new - - def _union_w_kw( - self, __d: Optional[Mapping[_KT, _VT]] = None, **kw: _VT - ) -> immutabledict[_KT, _VT]: - # not sure if C version works correctly w/ this yet - if not __d and not kw: - return self - - new = ImmutableDictBase.__new__(self.__class__) - dict.__init__(new, self) - if __d: - dict.update(new, __d) # type: ignore - dict.update(new, kw) # type: ignore - return new - - def merge_with( - self, *dicts: Optional[Mapping[_KT, _VT]] - ) -> immutabledict[_KT, _VT]: - new = None - for d in dicts: - if d: - if new is None: - new = ImmutableDictBase.__new__(self.__class__) - dict.__init__(new, self) - dict.update(new, d) # type: ignore - if new is None: - return self - - return new - - def __repr__(self) -> str: - return "immutabledict(%s)" % dict.__repr__(self) - - # PEP 584 - def __ior__(self, __value: Any) -> NoReturn: # type: ignore - self._readonly() - - def __or__( # type: ignore[override] - self, __value: Mapping[_KT, _VT] - ) -> immutabledict[_KT, _VT]: - return immutabledict( - super().__or__(__value), # type: ignore[call-overload] - ) - - def __ror__( # type: ignore[override] - self, __value: Mapping[_KT, _VT] - ) -> immutabledict[_KT, _VT]: - return immutabledict( - super().__ror__(__value), # type: ignore[call-overload] - ) - - -class OrderedSet(Set[_T]): - __slots__ = ("_list",) - - _list: List[_T] - - def __init__(self, d: Optional[Iterable[_T]] = None) -> None: - if d is not None: - self._list = unique_list(d) - super().update(self._list) - else: - self._list = [] - - def copy(self) -> OrderedSet[_T]: - cp = self.__class__() - cp._list = self._list.copy() - set.update(cp, cp._list) - return cp - - def add(self, element: _T) -> None: - if element not in self: - self._list.append(element) - super().add(element) - - def remove(self, element: _T) -> None: - super().remove(element) - self._list.remove(element) - - def pop(self) -> _T: - try: - value = self._list.pop() - except IndexError: - raise KeyError("pop from an empty set") from None - super().remove(value) - return value - - def insert(self, pos: int, element: _T) -> None: - if element not in self: - self._list.insert(pos, element) - super().add(element) - - def discard(self, element: _T) -> None: - if element in self: - self._list.remove(element) - super().remove(element) - - def clear(self) -> None: - super().clear() - self._list = [] - - def __getitem__(self, key: int) -> _T: - return self._list[key] - - def __iter__(self) -> Iterator[_T]: - return iter(self._list) - - def __add__(self, other: Iterator[_T]) -> OrderedSet[_T]: - return self.union(other) - - def __repr__(self) -> str: - return "%s(%r)" % (self.__class__.__name__, self._list) - - __str__ = __repr__ - - def update(self, *iterables: Iterable[_T]) -> None: - for iterable in iterables: - for e in iterable: - if e not in self: - self._list.append(e) - super().add(e) - - def __ior__(self, other: AbstractSet[_S]) -> OrderedSet[Union[_T, _S]]: - self.update(other) - return self - - def union(self, *other: Iterable[_S]) -> OrderedSet[Union[_T, _S]]: - result: OrderedSet[Union[_T, _S]] = self.copy() - result.update(*other) - return result - - def __or__(self, other: AbstractSet[_S]) -> OrderedSet[Union[_T, _S]]: - return self.union(other) - - def intersection(self, *other: Iterable[Any]) -> OrderedSet[_T]: - other_set: Set[Any] = set() - other_set.update(*other) - return self.__class__(a for a in self if a in other_set) - - def __and__(self, other: AbstractSet[object]) -> OrderedSet[_T]: - return self.intersection(other) - - def symmetric_difference(self, other: Iterable[_T]) -> OrderedSet[_T]: - collection: Collection[_T] - if isinstance(other, set): - collection = other_set = other - elif isinstance(other, Collection): - collection = other - other_set = set(other) - else: - collection = list(other) - other_set = set(collection) - result = self.__class__(a for a in self if a not in other_set) - result.update(a for a in collection if a not in self) - return result - - def __xor__(self, other: AbstractSet[_S]) -> OrderedSet[Union[_T, _S]]: - return cast(OrderedSet[Union[_T, _S]], self).symmetric_difference( - other - ) - - def difference(self, *other: Iterable[Any]) -> OrderedSet[_T]: - other_set = super().difference(*other) - return self.__class__(a for a in self._list if a in other_set) - - def __sub__(self, other: AbstractSet[Optional[_T]]) -> OrderedSet[_T]: - return self.difference(other) - - def intersection_update(self, *other: Iterable[Any]) -> None: - super().intersection_update(*other) - self._list = [a for a in self._list if a in self] - - def __iand__(self, other: AbstractSet[object]) -> OrderedSet[_T]: - self.intersection_update(other) - return self - - def symmetric_difference_update(self, other: Iterable[Any]) -> None: - collection = other if isinstance(other, Collection) else list(other) - super().symmetric_difference_update(collection) - self._list = [a for a in self._list if a in self] - self._list += [a for a in collection if a in self] - - def __ixor__(self, other: AbstractSet[_S]) -> OrderedSet[Union[_T, _S]]: - self.symmetric_difference_update(other) - return cast(OrderedSet[Union[_T, _S]], self) - - def difference_update(self, *other: Iterable[Any]) -> None: - super().difference_update(*other) - self._list = [a for a in self._list if a in self] - - def __isub__(self, other: AbstractSet[Optional[_T]]) -> OrderedSet[_T]: # type: ignore # noqa: E501 - self.difference_update(other) - return self - - -class IdentitySet: - """A set that considers only object id() for uniqueness. - - This strategy has edge cases for builtin types- it's possible to have - two 'foo' strings in one of these sets, for example. Use sparingly. - - """ - - _members: Dict[int, Any] - - def __init__(self, iterable: Optional[Iterable[Any]] = None): - self._members = dict() - if iterable: - self.update(iterable) - - def add(self, value: Any) -> None: - self._members[id(value)] = value - - def __contains__(self, value: Any) -> bool: - return id(value) in self._members - - def remove(self, value: Any) -> None: - del self._members[id(value)] - - def discard(self, value: Any) -> None: - try: - self.remove(value) - except KeyError: - pass - - def pop(self) -> Any: - try: - pair = self._members.popitem() - return pair[1] - except KeyError: - raise KeyError("pop from an empty set") - - def clear(self) -> None: - self._members.clear() - - def __eq__(self, other: Any) -> bool: - if isinstance(other, IdentitySet): - return self._members == other._members - else: - return False - - def __ne__(self, other: Any) -> bool: - if isinstance(other, IdentitySet): - return self._members != other._members - else: - return True - - def issubset(self, iterable: Iterable[Any]) -> bool: - if isinstance(iterable, self.__class__): - other = iterable - else: - other = self.__class__(iterable) - - if len(self) > len(other): - return False - for m in filterfalse( - other._members.__contains__, iter(self._members.keys()) - ): - return False - return True - - def __le__(self, other: Any) -> bool: - if not isinstance(other, IdentitySet): - return NotImplemented - return self.issubset(other) - - def __lt__(self, other: Any) -> bool: - if not isinstance(other, IdentitySet): - return NotImplemented - return len(self) < len(other) and self.issubset(other) - - def issuperset(self, iterable: Iterable[Any]) -> bool: - if isinstance(iterable, self.__class__): - other = iterable - else: - other = self.__class__(iterable) - - if len(self) < len(other): - return False - - for m in filterfalse( - self._members.__contains__, iter(other._members.keys()) - ): - return False - return True - - def __ge__(self, other: Any) -> bool: - if not isinstance(other, IdentitySet): - return NotImplemented - return self.issuperset(other) - - def __gt__(self, other: Any) -> bool: - if not isinstance(other, IdentitySet): - return NotImplemented - return len(self) > len(other) and self.issuperset(other) - - def union(self, iterable: Iterable[Any]) -> IdentitySet: - result = self.__class__() - members = self._members - result._members.update(members) - result._members.update((id(obj), obj) for obj in iterable) - return result - - def __or__(self, other: Any) -> IdentitySet: - if not isinstance(other, IdentitySet): - return NotImplemented - return self.union(other) - - def update(self, iterable: Iterable[Any]) -> None: - self._members.update((id(obj), obj) for obj in iterable) - - def __ior__(self, other: Any) -> IdentitySet: - if not isinstance(other, IdentitySet): - return NotImplemented - self.update(other) - return self - - def difference(self, iterable: Iterable[Any]) -> IdentitySet: - result = self.__new__(self.__class__) - other: Collection[Any] - - if isinstance(iterable, self.__class__): - other = iterable._members - else: - other = {id(obj) for obj in iterable} - result._members = { - k: v for k, v in self._members.items() if k not in other - } - return result - - def __sub__(self, other: IdentitySet) -> IdentitySet: - if not isinstance(other, IdentitySet): - return NotImplemented - return self.difference(other) - - def difference_update(self, iterable: Iterable[Any]) -> None: - self._members = self.difference(iterable)._members - - def __isub__(self, other: IdentitySet) -> IdentitySet: - if not isinstance(other, IdentitySet): - return NotImplemented - self.difference_update(other) - return self - - def intersection(self, iterable: Iterable[Any]) -> IdentitySet: - result = self.__new__(self.__class__) - - other: Collection[Any] - - if isinstance(iterable, self.__class__): - other = iterable._members - else: - other = {id(obj) for obj in iterable} - result._members = { - k: v for k, v in self._members.items() if k in other - } - return result - - def __and__(self, other: IdentitySet) -> IdentitySet: - if not isinstance(other, IdentitySet): - return NotImplemented - return self.intersection(other) - - def intersection_update(self, iterable: Iterable[Any]) -> None: - self._members = self.intersection(iterable)._members - - def __iand__(self, other: IdentitySet) -> IdentitySet: - if not isinstance(other, IdentitySet): - return NotImplemented - self.intersection_update(other) - return self - - def symmetric_difference(self, iterable: Iterable[Any]) -> IdentitySet: - result = self.__new__(self.__class__) - if isinstance(iterable, self.__class__): - other = iterable._members - else: - other = {id(obj): obj for obj in iterable} - result._members = { - k: v for k, v in self._members.items() if k not in other - } - result._members.update( - (k, v) for k, v in other.items() if k not in self._members - ) - return result - - def __xor__(self, other: IdentitySet) -> IdentitySet: - if not isinstance(other, IdentitySet): - return NotImplemented - return self.symmetric_difference(other) - - def symmetric_difference_update(self, iterable: Iterable[Any]) -> None: - self._members = self.symmetric_difference(iterable)._members - - def __ixor__(self, other: IdentitySet) -> IdentitySet: - if not isinstance(other, IdentitySet): - return NotImplemented - self.symmetric_difference(other) - return self - - def copy(self) -> IdentitySet: - result = self.__new__(self.__class__) - result._members = self._members.copy() - return result - - __copy__ = copy - - def __len__(self) -> int: - return len(self._members) - - def __iter__(self) -> Iterator[Any]: - return iter(self._members.values()) - - def __hash__(self) -> NoReturn: - raise TypeError("set objects are unhashable") - - def __repr__(self) -> str: - return "%s(%r)" % (type(self).__name__, list(self._members.values())) - - -def unique_list( - seq: Iterable[_T], hashfunc: Optional[Callable[[_T], int]] = None -) -> List[_T]: - seen: Set[Any] = set() - seen_add = seen.add - if not hashfunc: - return [x for x in seq if x not in seen and not seen_add(x)] - else: - return [ - x - for x in seq - if hashfunc(x) not in seen and not seen_add(hashfunc(x)) - ] diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/util/compat.py b/venv/lib/python3.11/site-packages/sqlalchemy/util/compat.py deleted file mode 100644 index e1b5e66..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/util/compat.py +++ /dev/null @@ -1,300 +0,0 @@ -# util/compat.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php -# mypy: allow-untyped-defs, allow-untyped-calls - -"""Handle Python version/platform incompatibilities.""" - -from __future__ import annotations - -import base64 -import dataclasses -import hashlib -import inspect -import operator -import platform -import sys -import typing -from typing import Any -from typing import Callable -from typing import Dict -from typing import Iterable -from typing import List -from typing import Mapping -from typing import Optional -from typing import Sequence -from typing import Set -from typing import Tuple -from typing import Type -from typing import TypeVar - - -py312 = sys.version_info >= (3, 12) -py311 = sys.version_info >= (3, 11) -py310 = sys.version_info >= (3, 10) -py39 = sys.version_info >= (3, 9) -py38 = sys.version_info >= (3, 8) -pypy = platform.python_implementation() == "PyPy" -cpython = platform.python_implementation() == "CPython" - -win32 = sys.platform.startswith("win") -osx = sys.platform.startswith("darwin") -arm = "aarch" in platform.machine().lower() -is64bit = sys.maxsize > 2**32 - -has_refcount_gc = bool(cpython) - -dottedgetter = operator.attrgetter - -_T_co = TypeVar("_T_co", covariant=True) - - -class FullArgSpec(typing.NamedTuple): - args: List[str] - varargs: Optional[str] - varkw: Optional[str] - defaults: Optional[Tuple[Any, ...]] - kwonlyargs: List[str] - kwonlydefaults: Dict[str, Any] - annotations: Dict[str, Any] - - -def inspect_getfullargspec(func: Callable[..., Any]) -> FullArgSpec: - """Fully vendored version of getfullargspec from Python 3.3.""" - - if inspect.ismethod(func): - func = func.__func__ - if not inspect.isfunction(func): - raise TypeError(f"{func!r} is not a Python function") - - co = func.__code__ - if not inspect.iscode(co): - raise TypeError(f"{co!r} is not a code object") - - nargs = co.co_argcount - names = co.co_varnames - nkwargs = co.co_kwonlyargcount - args = list(names[:nargs]) - kwonlyargs = list(names[nargs : nargs + nkwargs]) - - nargs += nkwargs - varargs = None - if co.co_flags & inspect.CO_VARARGS: - varargs = co.co_varnames[nargs] - nargs = nargs + 1 - varkw = None - if co.co_flags & inspect.CO_VARKEYWORDS: - varkw = co.co_varnames[nargs] - - return FullArgSpec( - args, - varargs, - varkw, - func.__defaults__, - kwonlyargs, - func.__kwdefaults__, - func.__annotations__, - ) - - -if py39: - # python stubs don't have a public type for this. not worth - # making a protocol - def md5_not_for_security() -> Any: - return hashlib.md5(usedforsecurity=False) - -else: - - def md5_not_for_security() -> Any: - return hashlib.md5() - - -if typing.TYPE_CHECKING or py38: - from importlib import metadata as importlib_metadata -else: - import importlib_metadata # noqa - - -if typing.TYPE_CHECKING or py39: - # pep 584 dict union - dict_union = operator.or_ # noqa -else: - - def dict_union(a: dict, b: dict) -> dict: - a = a.copy() - a.update(b) - return a - - -if py310: - anext_ = anext -else: - _NOT_PROVIDED = object() - from collections.abc import AsyncIterator - - async def anext_(async_iterator, default=_NOT_PROVIDED): - """vendored from https://github.com/python/cpython/pull/8895""" - - if not isinstance(async_iterator, AsyncIterator): - raise TypeError( - f"anext expected an AsyncIterator, got {type(async_iterator)}" - ) - anxt = type(async_iterator).__anext__ - try: - return await anxt(async_iterator) - except StopAsyncIteration: - if default is _NOT_PROVIDED: - raise - return default - - -def importlib_metadata_get(group): - ep = importlib_metadata.entry_points() - if typing.TYPE_CHECKING or hasattr(ep, "select"): - return ep.select(group=group) - else: - return ep.get(group, ()) - - -def b(s): - return s.encode("latin-1") - - -def b64decode(x: str) -> bytes: - return base64.b64decode(x.encode("ascii")) - - -def b64encode(x: bytes) -> str: - return base64.b64encode(x).decode("ascii") - - -def decode_backslashreplace(text: bytes, encoding: str) -> str: - return text.decode(encoding, errors="backslashreplace") - - -def cmp(a, b): - return (a > b) - (a < b) - - -def _formatannotation(annotation, base_module=None): - """vendored from python 3.7""" - - if isinstance(annotation, str): - return annotation - - if getattr(annotation, "__module__", None) == "typing": - return repr(annotation).replace("typing.", "").replace("~", "") - if isinstance(annotation, type): - if annotation.__module__ in ("builtins", base_module): - return repr(annotation.__qualname__) - return annotation.__module__ + "." + annotation.__qualname__ - elif isinstance(annotation, typing.TypeVar): - return repr(annotation).replace("~", "") - return repr(annotation).replace("~", "") - - -def inspect_formatargspec( - args: List[str], - varargs: Optional[str] = None, - varkw: Optional[str] = None, - defaults: Optional[Sequence[Any]] = None, - kwonlyargs: Optional[Sequence[str]] = (), - kwonlydefaults: Optional[Mapping[str, Any]] = {}, - annotations: Mapping[str, Any] = {}, - formatarg: Callable[[str], str] = str, - formatvarargs: Callable[[str], str] = lambda name: "*" + name, - formatvarkw: Callable[[str], str] = lambda name: "**" + name, - formatvalue: Callable[[Any], str] = lambda value: "=" + repr(value), - formatreturns: Callable[[Any], str] = lambda text: " -> " + str(text), - formatannotation: Callable[[Any], str] = _formatannotation, -) -> str: - """Copy formatargspec from python 3.7 standard library. - - Python 3 has deprecated formatargspec and requested that Signature - be used instead, however this requires a full reimplementation - of formatargspec() in terms of creating Parameter objects and such. - Instead of introducing all the object-creation overhead and having - to reinvent from scratch, just copy their compatibility routine. - - Ultimately we would need to rewrite our "decorator" routine completely - which is not really worth it right now, until all Python 2.x support - is dropped. - - """ - - kwonlydefaults = kwonlydefaults or {} - annotations = annotations or {} - - def formatargandannotation(arg): - result = formatarg(arg) - if arg in annotations: - result += ": " + formatannotation(annotations[arg]) - return result - - specs = [] - if defaults: - firstdefault = len(args) - len(defaults) - else: - firstdefault = -1 - - for i, arg in enumerate(args): - spec = formatargandannotation(arg) - if defaults and i >= firstdefault: - spec = spec + formatvalue(defaults[i - firstdefault]) - specs.append(spec) - - if varargs is not None: - specs.append(formatvarargs(formatargandannotation(varargs))) - else: - if kwonlyargs: - specs.append("*") - - if kwonlyargs: - for kwonlyarg in kwonlyargs: - spec = formatargandannotation(kwonlyarg) - if kwonlydefaults and kwonlyarg in kwonlydefaults: - spec += formatvalue(kwonlydefaults[kwonlyarg]) - specs.append(spec) - - if varkw is not None: - specs.append(formatvarkw(formatargandannotation(varkw))) - - result = "(" + ", ".join(specs) + ")" - if "return" in annotations: - result += formatreturns(formatannotation(annotations["return"])) - return result - - -def dataclass_fields(cls: Type[Any]) -> Iterable[dataclasses.Field[Any]]: - """Return a sequence of all dataclasses.Field objects associated - with a class as an already processed dataclass. - - The class must **already be a dataclass** for Field objects to be returned. - - """ - - if dataclasses.is_dataclass(cls): - return dataclasses.fields(cls) - else: - return [] - - -def local_dataclass_fields(cls: Type[Any]) -> Iterable[dataclasses.Field[Any]]: - """Return a sequence of all dataclasses.Field objects associated with - an already processed dataclass, excluding those that originate from a - superclass. - - The class must **already be a dataclass** for Field objects to be returned. - - """ - - if dataclasses.is_dataclass(cls): - super_fields: Set[dataclasses.Field[Any]] = set() - for sup in cls.__bases__: - super_fields.update(dataclass_fields(sup)) - return [f for f in dataclasses.fields(cls) if f not in super_fields] - else: - return [] diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/util/concurrency.py b/venv/lib/python3.11/site-packages/sqlalchemy/util/concurrency.py deleted file mode 100644 index de6195d..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/util/concurrency.py +++ /dev/null @@ -1,108 +0,0 @@ -# util/concurrency.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php -# mypy: allow-untyped-defs, allow-untyped-calls - -from __future__ import annotations - -import asyncio # noqa -import typing -from typing import Any -from typing import Callable -from typing import Coroutine -from typing import TypeVar - -have_greenlet = False -greenlet_error = None -try: - import greenlet # type: ignore[import-untyped,unused-ignore] # noqa: F401,E501 -except ImportError as e: - greenlet_error = str(e) - pass -else: - have_greenlet = True - from ._concurrency_py3k import await_only as await_only - from ._concurrency_py3k import await_fallback as await_fallback - from ._concurrency_py3k import in_greenlet as in_greenlet - from ._concurrency_py3k import greenlet_spawn as greenlet_spawn - from ._concurrency_py3k import is_exit_exception as is_exit_exception - from ._concurrency_py3k import AsyncAdaptedLock as AsyncAdaptedLock - from ._concurrency_py3k import _Runner - -_T = TypeVar("_T") - - -class _AsyncUtil: - """Asyncio util for test suite/ util only""" - - def __init__(self) -> None: - if have_greenlet: - self.runner = _Runner() - - def run( - self, - fn: Callable[..., Coroutine[Any, Any, _T]], - *args: Any, - **kwargs: Any, - ) -> _T: - """Run coroutine on the loop""" - return self.runner.run(fn(*args, **kwargs)) - - def run_in_greenlet( - self, fn: Callable[..., _T], *args: Any, **kwargs: Any - ) -> _T: - """Run sync function in greenlet. Support nested calls""" - if have_greenlet: - if self.runner.get_loop().is_running(): - return fn(*args, **kwargs) - else: - return self.runner.run(greenlet_spawn(fn, *args, **kwargs)) - else: - return fn(*args, **kwargs) - - def close(self) -> None: - if have_greenlet: - self.runner.close() - - -if not typing.TYPE_CHECKING and not have_greenlet: - - def _not_implemented(): - # this conditional is to prevent pylance from considering - # greenlet_spawn() etc as "no return" and dimming out code below it - if have_greenlet: - return None - - raise ValueError( - "the greenlet library is required to use this function." - " %s" % greenlet_error - if greenlet_error - else "" - ) - - def is_exit_exception(e): # noqa: F811 - return not isinstance(e, Exception) - - def await_only(thing): # type: ignore # noqa: F811 - _not_implemented() - - def await_fallback(thing): # type: ignore # noqa: F811 - return thing - - def in_greenlet(): # type: ignore # noqa: F811 - _not_implemented() - - def greenlet_spawn(fn, *args, **kw): # type: ignore # noqa: F811 - _not_implemented() - - def AsyncAdaptedLock(*args, **kw): # type: ignore # noqa: F811 - _not_implemented() - - def _util_async_run(fn, *arg, **kw): # type: ignore # noqa: F811 - return fn(*arg, **kw) - - def _util_async_run_coroutine_function(fn, *arg, **kw): # type: ignore # noqa: F811,E501 - _not_implemented() diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/util/deprecations.py b/venv/lib/python3.11/site-packages/sqlalchemy/util/deprecations.py deleted file mode 100644 index 3034715..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/util/deprecations.py +++ /dev/null @@ -1,401 +0,0 @@ -# util/deprecations.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php -# mypy: allow-untyped-defs, allow-untyped-calls - -"""Helpers related to deprecation of functions, methods, classes, other -functionality.""" - -from __future__ import annotations - -import re -from typing import Any -from typing import Callable -from typing import Dict -from typing import Match -from typing import Optional -from typing import Sequence -from typing import Set -from typing import Tuple -from typing import Type -from typing import TypeVar -from typing import Union - -from . import compat -from .langhelpers import _hash_limit_string -from .langhelpers import _warnings_warn -from .langhelpers import decorator -from .langhelpers import inject_docstring_text -from .langhelpers import inject_param_text -from .. import exc - -_T = TypeVar("_T", bound=Any) - - -# https://mypy.readthedocs.io/en/stable/generics.html#declaring-decorators -_F = TypeVar("_F", bound="Callable[..., Any]") - - -def _warn_with_version( - msg: str, - version: str, - type_: Type[exc.SADeprecationWarning], - stacklevel: int, - code: Optional[str] = None, -) -> None: - warn = type_(msg, code=code) - warn.deprecated_since = version - - _warnings_warn(warn, stacklevel=stacklevel + 1) - - -def warn_deprecated( - msg: str, version: str, stacklevel: int = 3, code: Optional[str] = None -) -> None: - _warn_with_version( - msg, version, exc.SADeprecationWarning, stacklevel, code=code - ) - - -def warn_deprecated_limited( - msg: str, - args: Sequence[Any], - version: str, - stacklevel: int = 3, - code: Optional[str] = None, -) -> None: - """Issue a deprecation warning with a parameterized string, - limiting the number of registrations. - - """ - if args: - msg = _hash_limit_string(msg, 10, args) - _warn_with_version( - msg, version, exc.SADeprecationWarning, stacklevel, code=code - ) - - -def deprecated_cls( - version: str, message: str, constructor: Optional[str] = "__init__" -) -> Callable[[Type[_T]], Type[_T]]: - header = ".. deprecated:: %s %s" % (version, (message or "")) - - def decorate(cls: Type[_T]) -> Type[_T]: - return _decorate_cls_with_warning( - cls, - constructor, - exc.SADeprecationWarning, - message % dict(func=constructor), - version, - header, - ) - - return decorate - - -def deprecated( - version: str, - message: Optional[str] = None, - add_deprecation_to_docstring: bool = True, - warning: Optional[Type[exc.SADeprecationWarning]] = None, - enable_warnings: bool = True, -) -> Callable[[_F], _F]: - """Decorates a function and issues a deprecation warning on use. - - :param version: - Issue version in the warning. - - :param message: - If provided, issue message in the warning. A sensible default - is used if not provided. - - :param add_deprecation_to_docstring: - Default True. If False, the wrapped function's __doc__ is left - as-is. If True, the 'message' is prepended to the docs if - provided, or sensible default if message is omitted. - - """ - - if add_deprecation_to_docstring: - header = ".. deprecated:: %s %s" % ( - version, - (message or ""), - ) - else: - header = None - - if message is None: - message = "Call to deprecated function %(func)s" - - if warning is None: - warning = exc.SADeprecationWarning - - message += " (deprecated since: %s)" % version - - def decorate(fn: _F) -> _F: - assert message is not None - assert warning is not None - return _decorate_with_warning( - fn, - warning, - message % dict(func=fn.__name__), - version, - header, - enable_warnings=enable_warnings, - ) - - return decorate - - -def moved_20( - message: str, **kw: Any -) -> Callable[[Callable[..., _T]], Callable[..., _T]]: - return deprecated( - "2.0", message=message, warning=exc.MovedIn20Warning, **kw - ) - - -def became_legacy_20( - api_name: str, alternative: Optional[str] = None, **kw: Any -) -> Callable[[_F], _F]: - type_reg = re.match("^:(attr|func|meth):", api_name) - if type_reg: - type_ = {"attr": "attribute", "func": "function", "meth": "method"}[ - type_reg.group(1) - ] - else: - type_ = "construct" - message = ( - "The %s %s is considered legacy as of the " - "1.x series of SQLAlchemy and %s in 2.0." - % ( - api_name, - type_, - "becomes a legacy construct", - ) - ) - - if ":attr:" in api_name: - attribute_ok = kw.pop("warn_on_attribute_access", False) - if not attribute_ok: - assert kw.get("enable_warnings") is False, ( - "attribute %s will emit a warning on read access. " - "If you *really* want this, " - "add warn_on_attribute_access=True. Otherwise please add " - "enable_warnings=False." % api_name - ) - - if alternative: - message += " " + alternative - - warning_cls = exc.LegacyAPIWarning - - return deprecated("2.0", message=message, warning=warning_cls, **kw) - - -def deprecated_params(**specs: Tuple[str, str]) -> Callable[[_F], _F]: - """Decorates a function to warn on use of certain parameters. - - e.g. :: - - @deprecated_params( - weak_identity_map=( - "0.7", - "the :paramref:`.Session.weak_identity_map parameter " - "is deprecated." - ) - - ) - - """ - - messages: Dict[str, str] = {} - versions: Dict[str, str] = {} - version_warnings: Dict[str, Type[exc.SADeprecationWarning]] = {} - - for param, (version, message) in specs.items(): - versions[param] = version - messages[param] = _sanitize_restructured_text(message) - version_warnings[param] = exc.SADeprecationWarning - - def decorate(fn: _F) -> _F: - spec = compat.inspect_getfullargspec(fn) - - check_defaults: Union[Set[str], Tuple[()]] - if spec.defaults is not None: - defaults = dict( - zip( - spec.args[(len(spec.args) - len(spec.defaults)) :], - spec.defaults, - ) - ) - check_defaults = set(defaults).intersection(messages) - check_kw = set(messages).difference(defaults) - elif spec.kwonlydefaults is not None: - defaults = spec.kwonlydefaults - check_defaults = set(defaults).intersection(messages) - check_kw = set(messages).difference(defaults) - else: - check_defaults = () - check_kw = set(messages) - - check_any_kw = spec.varkw - - # latest mypy has opinions here, not sure if they implemented - # Concatenate or something - @decorator - def warned(fn: _F, *args: Any, **kwargs: Any) -> _F: - for m in check_defaults: - if (defaults[m] is None and kwargs[m] is not None) or ( - defaults[m] is not None and kwargs[m] != defaults[m] - ): - _warn_with_version( - messages[m], - versions[m], - version_warnings[m], - stacklevel=3, - ) - - if check_any_kw in messages and set(kwargs).difference( - check_defaults - ): - assert check_any_kw is not None - _warn_with_version( - messages[check_any_kw], - versions[check_any_kw], - version_warnings[check_any_kw], - stacklevel=3, - ) - - for m in check_kw: - if m in kwargs: - _warn_with_version( - messages[m], - versions[m], - version_warnings[m], - stacklevel=3, - ) - return fn(*args, **kwargs) # type: ignore[no-any-return] - - doc = fn.__doc__ is not None and fn.__doc__ or "" - if doc: - doc = inject_param_text( - doc, - { - param: ".. deprecated:: %s %s" - % ("1.4" if version == "2.0" else version, (message or "")) - for param, (version, message) in specs.items() - }, - ) - decorated = warned(fn) - decorated.__doc__ = doc - return decorated - - return decorate - - -def _sanitize_restructured_text(text: str) -> str: - def repl(m: Match[str]) -> str: - type_, name = m.group(1, 2) - if type_ in ("func", "meth"): - name += "()" - return name - - text = re.sub(r":ref:`(.+) <.*>`", lambda m: '"%s"' % m.group(1), text) - return re.sub(r"\:(\w+)\:`~?(?:_\w+)?\.?(.+?)`", repl, text) - - -def _decorate_cls_with_warning( - cls: Type[_T], - constructor: Optional[str], - wtype: Type[exc.SADeprecationWarning], - message: str, - version: str, - docstring_header: Optional[str] = None, -) -> Type[_T]: - doc = cls.__doc__ is not None and cls.__doc__ or "" - if docstring_header is not None: - if constructor is not None: - docstring_header %= dict(func=constructor) - - if issubclass(wtype, exc.Base20DeprecationWarning): - docstring_header += ( - " (Background on SQLAlchemy 2.0 at: " - ":ref:`migration_20_toplevel`)" - ) - doc = inject_docstring_text(doc, docstring_header, 1) - - constructor_fn = None - if type(cls) is type: - clsdict = dict(cls.__dict__) - clsdict["__doc__"] = doc - clsdict.pop("__dict__", None) - clsdict.pop("__weakref__", None) - cls = type(cls.__name__, cls.__bases__, clsdict) - if constructor is not None: - constructor_fn = clsdict[constructor] - - else: - cls.__doc__ = doc - if constructor is not None: - constructor_fn = getattr(cls, constructor) - - if constructor is not None: - assert constructor_fn is not None - assert wtype is not None - setattr( - cls, - constructor, - _decorate_with_warning( - constructor_fn, wtype, message, version, None - ), - ) - return cls - - -def _decorate_with_warning( - func: _F, - wtype: Type[exc.SADeprecationWarning], - message: str, - version: str, - docstring_header: Optional[str] = None, - enable_warnings: bool = True, -) -> _F: - """Wrap a function with a warnings.warn and augmented docstring.""" - - message = _sanitize_restructured_text(message) - - if issubclass(wtype, exc.Base20DeprecationWarning): - doc_only = ( - " (Background on SQLAlchemy 2.0 at: " - ":ref:`migration_20_toplevel`)" - ) - else: - doc_only = "" - - @decorator - def warned(fn: _F, *args: Any, **kwargs: Any) -> _F: - skip_warning = not enable_warnings or kwargs.pop( - "_sa_skip_warning", False - ) - if not skip_warning: - _warn_with_version(message, version, wtype, stacklevel=3) - return fn(*args, **kwargs) # type: ignore[no-any-return] - - doc = func.__doc__ is not None and func.__doc__ or "" - if docstring_header is not None: - docstring_header %= dict(func=func.__name__) - - docstring_header += doc_only - - doc = inject_docstring_text(doc, docstring_header, 1) - - decorated = warned(func) - decorated.__doc__ = doc - decorated._sa_warn = lambda: _warn_with_version( # type: ignore - message, version, wtype, stacklevel=3 - ) - return decorated diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/util/langhelpers.py b/venv/lib/python3.11/site-packages/sqlalchemy/util/langhelpers.py deleted file mode 100644 index 4390ae1..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/util/langhelpers.py +++ /dev/null @@ -1,2211 +0,0 @@ -# util/langhelpers.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php -# mypy: allow-untyped-defs, allow-untyped-calls - -"""Routines to help with the creation, loading and introspection of -modules, classes, hierarchies, attributes, functions, and methods. - -""" -from __future__ import annotations - -import collections -import enum -from functools import update_wrapper -import inspect -import itertools -import operator -import re -import sys -import textwrap -import threading -import types -from types import CodeType -from typing import Any -from typing import Callable -from typing import cast -from typing import Dict -from typing import FrozenSet -from typing import Generic -from typing import Iterator -from typing import List -from typing import Mapping -from typing import NoReturn -from typing import Optional -from typing import overload -from typing import Sequence -from typing import Set -from typing import Tuple -from typing import Type -from typing import TYPE_CHECKING -from typing import TypeVar -from typing import Union -import warnings - -from . import _collections -from . import compat -from ._has_cy import HAS_CYEXTENSION -from .typing import Literal -from .. import exc - -_T = TypeVar("_T") -_T_co = TypeVar("_T_co", covariant=True) -_F = TypeVar("_F", bound=Callable[..., Any]) -_MP = TypeVar("_MP", bound="memoized_property[Any]") -_MA = TypeVar("_MA", bound="HasMemoized.memoized_attribute[Any]") -_HP = TypeVar("_HP", bound="hybridproperty[Any]") -_HM = TypeVar("_HM", bound="hybridmethod[Any]") - - -if compat.py310: - - def get_annotations(obj: Any) -> Mapping[str, Any]: - return inspect.get_annotations(obj) - -else: - - def get_annotations(obj: Any) -> Mapping[str, Any]: - # it's been observed that cls.__annotations__ can be non present. - # it's not clear what causes this, running under tox py37/38 it - # happens, running straight pytest it doesnt - - # https://docs.python.org/3/howto/annotations.html#annotations-howto - if isinstance(obj, type): - ann = obj.__dict__.get("__annotations__", None) - else: - ann = getattr(obj, "__annotations__", None) - - if ann is None: - return _collections.EMPTY_DICT - else: - return cast("Mapping[str, Any]", ann) - - -def md5_hex(x: Any) -> str: - x = x.encode("utf-8") - m = compat.md5_not_for_security() - m.update(x) - return cast(str, m.hexdigest()) - - -class safe_reraise: - """Reraise an exception after invoking some - handler code. - - Stores the existing exception info before - invoking so that it is maintained across a potential - coroutine context switch. - - e.g.:: - - try: - sess.commit() - except: - with safe_reraise(): - sess.rollback() - - TODO: we should at some point evaluate current behaviors in this regard - based on current greenlet, gevent/eventlet implementations in Python 3, and - also see the degree to which our own asyncio (based on greenlet also) is - impacted by this. .rollback() will cause IO / context switch to occur in - all these scenarios; what happens to the exception context from an - "except:" block if we don't explicitly store it? Original issue was #2703. - - """ - - __slots__ = ("_exc_info",) - - _exc_info: Union[ - None, - Tuple[ - Type[BaseException], - BaseException, - types.TracebackType, - ], - Tuple[None, None, None], - ] - - def __enter__(self) -> None: - self._exc_info = sys.exc_info() - - def __exit__( - self, - type_: Optional[Type[BaseException]], - value: Optional[BaseException], - traceback: Optional[types.TracebackType], - ) -> NoReturn: - assert self._exc_info is not None - # see #2703 for notes - if type_ is None: - exc_type, exc_value, exc_tb = self._exc_info - assert exc_value is not None - self._exc_info = None # remove potential circular references - raise exc_value.with_traceback(exc_tb) - else: - self._exc_info = None # remove potential circular references - assert value is not None - raise value.with_traceback(traceback) - - -def walk_subclasses(cls: Type[_T]) -> Iterator[Type[_T]]: - seen: Set[Any] = set() - - stack = [cls] - while stack: - cls = stack.pop() - if cls in seen: - continue - else: - seen.add(cls) - stack.extend(cls.__subclasses__()) - yield cls - - -def string_or_unprintable(element: Any) -> str: - if isinstance(element, str): - return element - else: - try: - return str(element) - except Exception: - return "unprintable element %r" % element - - -def clsname_as_plain_name( - cls: Type[Any], use_name: Optional[str] = None -) -> str: - name = use_name or cls.__name__ - return " ".join(n.lower() for n in re.findall(r"([A-Z][a-z]+|SQL)", name)) - - -def method_is_overridden( - instance_or_cls: Union[Type[Any], object], - against_method: Callable[..., Any], -) -> bool: - """Return True if the two class methods don't match.""" - - if not isinstance(instance_or_cls, type): - current_cls = instance_or_cls.__class__ - else: - current_cls = instance_or_cls - - method_name = against_method.__name__ - - current_method: types.MethodType = getattr(current_cls, method_name) - - return current_method != against_method - - -def decode_slice(slc: slice) -> Tuple[Any, ...]: - """decode a slice object as sent to __getitem__. - - takes into account the 2.5 __index__() method, basically. - - """ - ret: List[Any] = [] - for x in slc.start, slc.stop, slc.step: - if hasattr(x, "__index__"): - x = x.__index__() - ret.append(x) - return tuple(ret) - - -def _unique_symbols(used: Sequence[str], *bases: str) -> Iterator[str]: - used_set = set(used) - for base in bases: - pool = itertools.chain( - (base,), - map(lambda i: base + str(i), range(1000)), - ) - for sym in pool: - if sym not in used_set: - used_set.add(sym) - yield sym - break - else: - raise NameError("exhausted namespace for symbol base %s" % base) - - -def map_bits(fn: Callable[[int], Any], n: int) -> Iterator[Any]: - """Call the given function given each nonzero bit from n.""" - - while n: - b = n & (~n + 1) - yield fn(b) - n ^= b - - -_Fn = TypeVar("_Fn", bound="Callable[..., Any]") - -# this seems to be in flux in recent mypy versions - - -def decorator(target: Callable[..., Any]) -> Callable[[_Fn], _Fn]: - """A signature-matching decorator factory.""" - - def decorate(fn: _Fn) -> _Fn: - if not inspect.isfunction(fn) and not inspect.ismethod(fn): - raise Exception("not a decoratable function") - - spec = compat.inspect_getfullargspec(fn) - env: Dict[str, Any] = {} - - spec = _update_argspec_defaults_into_env(spec, env) - - names = ( - tuple(cast("Tuple[str, ...]", spec[0])) - + cast("Tuple[str, ...]", spec[1:3]) - + (fn.__name__,) - ) - targ_name, fn_name = _unique_symbols(names, "target", "fn") - - metadata: Dict[str, Optional[str]] = dict(target=targ_name, fn=fn_name) - metadata.update(format_argspec_plus(spec, grouped=False)) - metadata["name"] = fn.__name__ - - if inspect.iscoroutinefunction(fn): - metadata["prefix"] = "async " - metadata["target_prefix"] = "await " - else: - metadata["prefix"] = "" - metadata["target_prefix"] = "" - - # look for __ positional arguments. This is a convention in - # SQLAlchemy that arguments should be passed positionally - # rather than as keyword - # arguments. note that apply_pos doesn't currently work in all cases - # such as when a kw-only indicator "*" is present, which is why - # we limit the use of this to just that case we can detect. As we add - # more kinds of methods that use @decorator, things may have to - # be further improved in this area - if "__" in repr(spec[0]): - code = ( - """\ -%(prefix)sdef %(name)s%(grouped_args)s: - return %(target_prefix)s%(target)s(%(fn)s, %(apply_pos)s) -""" - % metadata - ) - else: - code = ( - """\ -%(prefix)sdef %(name)s%(grouped_args)s: - return %(target_prefix)s%(target)s(%(fn)s, %(apply_kw)s) -""" - % metadata - ) - - mod = sys.modules[fn.__module__] - env.update(vars(mod)) - env.update({targ_name: target, fn_name: fn, "__name__": fn.__module__}) - - decorated = cast( - types.FunctionType, - _exec_code_in_env(code, env, fn.__name__), - ) - decorated.__defaults__ = getattr(fn, "__func__", fn).__defaults__ - - decorated.__wrapped__ = fn # type: ignore - return cast(_Fn, update_wrapper(decorated, fn)) - - return update_wrapper(decorate, target) - - -def _update_argspec_defaults_into_env(spec, env): - """given a FullArgSpec, convert defaults to be symbol names in an env.""" - - if spec.defaults: - new_defaults = [] - i = 0 - for arg in spec.defaults: - if type(arg).__module__ not in ("builtins", "__builtin__"): - name = "x%d" % i - env[name] = arg - new_defaults.append(name) - i += 1 - else: - new_defaults.append(arg) - elem = list(spec) - elem[3] = tuple(new_defaults) - return compat.FullArgSpec(*elem) - else: - return spec - - -def _exec_code_in_env( - code: Union[str, types.CodeType], env: Dict[str, Any], fn_name: str -) -> Callable[..., Any]: - exec(code, env) - return env[fn_name] # type: ignore[no-any-return] - - -_PF = TypeVar("_PF") -_TE = TypeVar("_TE") - - -class PluginLoader: - def __init__( - self, group: str, auto_fn: Optional[Callable[..., Any]] = None - ): - self.group = group - self.impls: Dict[str, Any] = {} - self.auto_fn = auto_fn - - def clear(self): - self.impls.clear() - - def load(self, name: str) -> Any: - if name in self.impls: - return self.impls[name]() - - if self.auto_fn: - loader = self.auto_fn(name) - if loader: - self.impls[name] = loader - return loader() - - for impl in compat.importlib_metadata_get(self.group): - if impl.name == name: - self.impls[name] = impl.load - return impl.load() - - raise exc.NoSuchModuleError( - "Can't load plugin: %s:%s" % (self.group, name) - ) - - def register(self, name: str, modulepath: str, objname: str) -> None: - def load(): - mod = __import__(modulepath) - for token in modulepath.split(".")[1:]: - mod = getattr(mod, token) - return getattr(mod, objname) - - self.impls[name] = load - - -def _inspect_func_args(fn): - try: - co_varkeywords = inspect.CO_VARKEYWORDS - except AttributeError: - # https://docs.python.org/3/library/inspect.html - # The flags are specific to CPython, and may not be defined in other - # Python implementations. Furthermore, the flags are an implementation - # detail, and can be removed or deprecated in future Python releases. - spec = compat.inspect_getfullargspec(fn) - return spec[0], bool(spec[2]) - else: - # use fn.__code__ plus flags to reduce method call overhead - co = fn.__code__ - nargs = co.co_argcount - return ( - list(co.co_varnames[:nargs]), - bool(co.co_flags & co_varkeywords), - ) - - -@overload -def get_cls_kwargs( - cls: type, - *, - _set: Optional[Set[str]] = None, - raiseerr: Literal[True] = ..., -) -> Set[str]: ... - - -@overload -def get_cls_kwargs( - cls: type, *, _set: Optional[Set[str]] = None, raiseerr: bool = False -) -> Optional[Set[str]]: ... - - -def get_cls_kwargs( - cls: type, *, _set: Optional[Set[str]] = None, raiseerr: bool = False -) -> Optional[Set[str]]: - r"""Return the full set of inherited kwargs for the given `cls`. - - Probes a class's __init__ method, collecting all named arguments. If the - __init__ defines a \**kwargs catch-all, then the constructor is presumed - to pass along unrecognized keywords to its base classes, and the - collection process is repeated recursively on each of the bases. - - Uses a subset of inspect.getfullargspec() to cut down on method overhead, - as this is used within the Core typing system to create copies of type - objects which is a performance-sensitive operation. - - No anonymous tuple arguments please ! - - """ - toplevel = _set is None - if toplevel: - _set = set() - assert _set is not None - - ctr = cls.__dict__.get("__init__", False) - - has_init = ( - ctr - and isinstance(ctr, types.FunctionType) - and isinstance(ctr.__code__, types.CodeType) - ) - - if has_init: - names, has_kw = _inspect_func_args(ctr) - _set.update(names) - - if not has_kw and not toplevel: - if raiseerr: - raise TypeError( - f"given cls {cls} doesn't have an __init__ method" - ) - else: - return None - else: - has_kw = False - - if not has_init or has_kw: - for c in cls.__bases__: - if get_cls_kwargs(c, _set=_set) is None: - break - - _set.discard("self") - return _set - - -def get_func_kwargs(func: Callable[..., Any]) -> List[str]: - """Return the set of legal kwargs for the given `func`. - - Uses getargspec so is safe to call for methods, functions, - etc. - - """ - - return compat.inspect_getfullargspec(func)[0] - - -def get_callable_argspec( - fn: Callable[..., Any], no_self: bool = False, _is_init: bool = False -) -> compat.FullArgSpec: - """Return the argument signature for any callable. - - All pure-Python callables are accepted, including - functions, methods, classes, objects with __call__; - builtins and other edge cases like functools.partial() objects - raise a TypeError. - - """ - if inspect.isbuiltin(fn): - raise TypeError("Can't inspect builtin: %s" % fn) - elif inspect.isfunction(fn): - if _is_init and no_self: - spec = compat.inspect_getfullargspec(fn) - return compat.FullArgSpec( - spec.args[1:], - spec.varargs, - spec.varkw, - spec.defaults, - spec.kwonlyargs, - spec.kwonlydefaults, - spec.annotations, - ) - else: - return compat.inspect_getfullargspec(fn) - elif inspect.ismethod(fn): - if no_self and (_is_init or fn.__self__): - spec = compat.inspect_getfullargspec(fn.__func__) - return compat.FullArgSpec( - spec.args[1:], - spec.varargs, - spec.varkw, - spec.defaults, - spec.kwonlyargs, - spec.kwonlydefaults, - spec.annotations, - ) - else: - return compat.inspect_getfullargspec(fn.__func__) - elif inspect.isclass(fn): - return get_callable_argspec( - fn.__init__, no_self=no_self, _is_init=True - ) - elif hasattr(fn, "__func__"): - return compat.inspect_getfullargspec(fn.__func__) - elif hasattr(fn, "__call__"): - if inspect.ismethod(fn.__call__): - return get_callable_argspec(fn.__call__, no_self=no_self) - else: - raise TypeError("Can't inspect callable: %s" % fn) - else: - raise TypeError("Can't inspect callable: %s" % fn) - - -def format_argspec_plus( - fn: Union[Callable[..., Any], compat.FullArgSpec], grouped: bool = True -) -> Dict[str, Optional[str]]: - """Returns a dictionary of formatted, introspected function arguments. - - A enhanced variant of inspect.formatargspec to support code generation. - - fn - An inspectable callable or tuple of inspect getargspec() results. - grouped - Defaults to True; include (parens, around, argument) lists - - Returns: - - args - Full inspect.formatargspec for fn - self_arg - The name of the first positional argument, varargs[0], or None - if the function defines no positional arguments. - apply_pos - args, re-written in calling rather than receiving syntax. Arguments are - passed positionally. - apply_kw - Like apply_pos, except keyword-ish args are passed as keywords. - apply_pos_proxied - Like apply_pos but omits the self/cls argument - - Example:: - - >>> format_argspec_plus(lambda self, a, b, c=3, **d: 123) - {'grouped_args': '(self, a, b, c=3, **d)', - 'self_arg': 'self', - 'apply_kw': '(self, a, b, c=c, **d)', - 'apply_pos': '(self, a, b, c, **d)'} - - """ - if callable(fn): - spec = compat.inspect_getfullargspec(fn) - else: - spec = fn - - args = compat.inspect_formatargspec(*spec) - - apply_pos = compat.inspect_formatargspec( - spec[0], spec[1], spec[2], None, spec[4] - ) - - if spec[0]: - self_arg = spec[0][0] - - apply_pos_proxied = compat.inspect_formatargspec( - spec[0][1:], spec[1], spec[2], None, spec[4] - ) - - elif spec[1]: - # I'm not sure what this is - self_arg = "%s[0]" % spec[1] - - apply_pos_proxied = apply_pos - else: - self_arg = None - apply_pos_proxied = apply_pos - - num_defaults = 0 - if spec[3]: - num_defaults += len(cast(Tuple[Any], spec[3])) - if spec[4]: - num_defaults += len(spec[4]) - - name_args = spec[0] + spec[4] - - defaulted_vals: Union[List[str], Tuple[()]] - - if num_defaults: - defaulted_vals = name_args[0 - num_defaults :] - else: - defaulted_vals = () - - apply_kw = compat.inspect_formatargspec( - name_args, - spec[1], - spec[2], - defaulted_vals, - formatvalue=lambda x: "=" + str(x), - ) - - if spec[0]: - apply_kw_proxied = compat.inspect_formatargspec( - name_args[1:], - spec[1], - spec[2], - defaulted_vals, - formatvalue=lambda x: "=" + str(x), - ) - else: - apply_kw_proxied = apply_kw - - if grouped: - return dict( - grouped_args=args, - self_arg=self_arg, - apply_pos=apply_pos, - apply_kw=apply_kw, - apply_pos_proxied=apply_pos_proxied, - apply_kw_proxied=apply_kw_proxied, - ) - else: - return dict( - grouped_args=args, - self_arg=self_arg, - apply_pos=apply_pos[1:-1], - apply_kw=apply_kw[1:-1], - apply_pos_proxied=apply_pos_proxied[1:-1], - apply_kw_proxied=apply_kw_proxied[1:-1], - ) - - -def format_argspec_init(method, grouped=True): - """format_argspec_plus with considerations for typical __init__ methods - - Wraps format_argspec_plus with error handling strategies for typical - __init__ cases:: - - object.__init__ -> (self) - other unreflectable (usually C) -> (self, *args, **kwargs) - - """ - if method is object.__init__: - grouped_args = "(self)" - args = "(self)" if grouped else "self" - proxied = "()" if grouped else "" - else: - try: - return format_argspec_plus(method, grouped=grouped) - except TypeError: - grouped_args = "(self, *args, **kwargs)" - args = grouped_args if grouped else "self, *args, **kwargs" - proxied = "(*args, **kwargs)" if grouped else "*args, **kwargs" - return dict( - self_arg="self", - grouped_args=grouped_args, - apply_pos=args, - apply_kw=args, - apply_pos_proxied=proxied, - apply_kw_proxied=proxied, - ) - - -def create_proxy_methods( - target_cls: Type[Any], - target_cls_sphinx_name: str, - proxy_cls_sphinx_name: str, - classmethods: Sequence[str] = (), - methods: Sequence[str] = (), - attributes: Sequence[str] = (), - use_intermediate_variable: Sequence[str] = (), -) -> Callable[[_T], _T]: - """A class decorator indicating attributes should refer to a proxy - class. - - This decorator is now a "marker" that does nothing at runtime. Instead, - it is consumed by the tools/generate_proxy_methods.py script to - statically generate proxy methods and attributes that are fully - recognized by typing tools such as mypy. - - """ - - def decorate(cls): - return cls - - return decorate - - -def getargspec_init(method): - """inspect.getargspec with considerations for typical __init__ methods - - Wraps inspect.getargspec with error handling for typical __init__ cases:: - - object.__init__ -> (self) - other unreflectable (usually C) -> (self, *args, **kwargs) - - """ - try: - return compat.inspect_getfullargspec(method) - except TypeError: - if method is object.__init__: - return (["self"], None, None, None) - else: - return (["self"], "args", "kwargs", None) - - -def unbound_method_to_callable(func_or_cls): - """Adjust the incoming callable such that a 'self' argument is not - required. - - """ - - if isinstance(func_or_cls, types.MethodType) and not func_or_cls.__self__: - return func_or_cls.__func__ - else: - return func_or_cls - - -def generic_repr( - obj: Any, - additional_kw: Sequence[Tuple[str, Any]] = (), - to_inspect: Optional[Union[object, List[object]]] = None, - omit_kwarg: Sequence[str] = (), -) -> str: - """Produce a __repr__() based on direct association of the __init__() - specification vs. same-named attributes present. - - """ - if to_inspect is None: - to_inspect = [obj] - else: - to_inspect = _collections.to_list(to_inspect) - - missing = object() - - pos_args = [] - kw_args: _collections.OrderedDict[str, Any] = _collections.OrderedDict() - vargs = None - for i, insp in enumerate(to_inspect): - try: - spec = compat.inspect_getfullargspec(insp.__init__) - except TypeError: - continue - else: - default_len = len(spec.defaults) if spec.defaults else 0 - if i == 0: - if spec.varargs: - vargs = spec.varargs - if default_len: - pos_args.extend(spec.args[1:-default_len]) - else: - pos_args.extend(spec.args[1:]) - else: - kw_args.update( - [(arg, missing) for arg in spec.args[1:-default_len]] - ) - - if default_len: - assert spec.defaults - kw_args.update( - [ - (arg, default) - for arg, default in zip( - spec.args[-default_len:], spec.defaults - ) - ] - ) - output: List[str] = [] - - output.extend(repr(getattr(obj, arg, None)) for arg in pos_args) - - if vargs is not None and hasattr(obj, vargs): - output.extend([repr(val) for val in getattr(obj, vargs)]) - - for arg, defval in kw_args.items(): - if arg in omit_kwarg: - continue - try: - val = getattr(obj, arg, missing) - if val is not missing and val != defval: - output.append("%s=%r" % (arg, val)) - except Exception: - pass - - if additional_kw: - for arg, defval in additional_kw: - try: - val = getattr(obj, arg, missing) - if val is not missing and val != defval: - output.append("%s=%r" % (arg, val)) - except Exception: - pass - - return "%s(%s)" % (obj.__class__.__name__, ", ".join(output)) - - -class portable_instancemethod: - """Turn an instancemethod into a (parent, name) pair - to produce a serializable callable. - - """ - - __slots__ = "target", "name", "kwargs", "__weakref__" - - def __getstate__(self): - return { - "target": self.target, - "name": self.name, - "kwargs": self.kwargs, - } - - def __setstate__(self, state): - self.target = state["target"] - self.name = state["name"] - self.kwargs = state.get("kwargs", ()) - - def __init__(self, meth, kwargs=()): - self.target = meth.__self__ - self.name = meth.__name__ - self.kwargs = kwargs - - def __call__(self, *arg, **kw): - kw.update(self.kwargs) - return getattr(self.target, self.name)(*arg, **kw) - - -def class_hierarchy(cls): - """Return an unordered sequence of all classes related to cls. - - Traverses diamond hierarchies. - - Fibs slightly: subclasses of builtin types are not returned. Thus - class_hierarchy(class A(object)) returns (A, object), not A plus every - class systemwide that derives from object. - - """ - - hier = {cls} - process = list(cls.__mro__) - while process: - c = process.pop() - bases = (_ for _ in c.__bases__ if _ not in hier) - - for b in bases: - process.append(b) - hier.add(b) - - if c.__module__ == "builtins" or not hasattr(c, "__subclasses__"): - continue - - for s in [ - _ - for _ in ( - c.__subclasses__() - if not issubclass(c, type) - else c.__subclasses__(c) - ) - if _ not in hier - ]: - process.append(s) - hier.add(s) - return list(hier) - - -def iterate_attributes(cls): - """iterate all the keys and attributes associated - with a class, without using getattr(). - - Does not use getattr() so that class-sensitive - descriptors (i.e. property.__get__()) are not called. - - """ - keys = dir(cls) - for key in keys: - for c in cls.__mro__: - if key in c.__dict__: - yield (key, c.__dict__[key]) - break - - -def monkeypatch_proxied_specials( - into_cls, - from_cls, - skip=None, - only=None, - name="self.proxy", - from_instance=None, -): - """Automates delegation of __specials__ for a proxying type.""" - - if only: - dunders = only - else: - if skip is None: - skip = ( - "__slots__", - "__del__", - "__getattribute__", - "__metaclass__", - "__getstate__", - "__setstate__", - ) - dunders = [ - m - for m in dir(from_cls) - if ( - m.startswith("__") - and m.endswith("__") - and not hasattr(into_cls, m) - and m not in skip - ) - ] - - for method in dunders: - try: - maybe_fn = getattr(from_cls, method) - if not hasattr(maybe_fn, "__call__"): - continue - maybe_fn = getattr(maybe_fn, "__func__", maybe_fn) - fn = cast(types.FunctionType, maybe_fn) - - except AttributeError: - continue - try: - spec = compat.inspect_getfullargspec(fn) - fn_args = compat.inspect_formatargspec(spec[0]) - d_args = compat.inspect_formatargspec(spec[0][1:]) - except TypeError: - fn_args = "(self, *args, **kw)" - d_args = "(*args, **kw)" - - py = ( - "def %(method)s%(fn_args)s: " - "return %(name)s.%(method)s%(d_args)s" % locals() - ) - - env: Dict[str, types.FunctionType] = ( - from_instance is not None and {name: from_instance} or {} - ) - exec(py, env) - try: - env[method].__defaults__ = fn.__defaults__ - except AttributeError: - pass - setattr(into_cls, method, env[method]) - - -def methods_equivalent(meth1, meth2): - """Return True if the two methods are the same implementation.""" - - return getattr(meth1, "__func__", meth1) is getattr( - meth2, "__func__", meth2 - ) - - -def as_interface(obj, cls=None, methods=None, required=None): - """Ensure basic interface compliance for an instance or dict of callables. - - Checks that ``obj`` implements public methods of ``cls`` or has members - listed in ``methods``. If ``required`` is not supplied, implementing at - least one interface method is sufficient. Methods present on ``obj`` that - are not in the interface are ignored. - - If ``obj`` is a dict and ``dict`` does not meet the interface - requirements, the keys of the dictionary are inspected. Keys present in - ``obj`` that are not in the interface will raise TypeErrors. - - Raises TypeError if ``obj`` does not meet the interface criteria. - - In all passing cases, an object with callable members is returned. In the - simple case, ``obj`` is returned as-is; if dict processing kicks in then - an anonymous class is returned. - - obj - A type, instance, or dictionary of callables. - cls - Optional, a type. All public methods of cls are considered the - interface. An ``obj`` instance of cls will always pass, ignoring - ``required``.. - methods - Optional, a sequence of method names to consider as the interface. - required - Optional, a sequence of mandatory implementations. If omitted, an - ``obj`` that provides at least one interface method is considered - sufficient. As a convenience, required may be a type, in which case - all public methods of the type are required. - - """ - if not cls and not methods: - raise TypeError("a class or collection of method names are required") - - if isinstance(cls, type) and isinstance(obj, cls): - return obj - - interface = set(methods or [m for m in dir(cls) if not m.startswith("_")]) - implemented = set(dir(obj)) - - complies = operator.ge - if isinstance(required, type): - required = interface - elif not required: - required = set() - complies = operator.gt - else: - required = set(required) - - if complies(implemented.intersection(interface), required): - return obj - - # No dict duck typing here. - if not isinstance(obj, dict): - qualifier = complies is operator.gt and "any of" or "all of" - raise TypeError( - "%r does not implement %s: %s" - % (obj, qualifier, ", ".join(interface)) - ) - - class AnonymousInterface: - """A callable-holding shell.""" - - if cls: - AnonymousInterface.__name__ = "Anonymous" + cls.__name__ - found = set() - - for method, impl in dictlike_iteritems(obj): - if method not in interface: - raise TypeError("%r: unknown in this interface" % method) - if not callable(impl): - raise TypeError("%r=%r is not callable" % (method, impl)) - setattr(AnonymousInterface, method, staticmethod(impl)) - found.add(method) - - if complies(found, required): - return AnonymousInterface - - raise TypeError( - "dictionary does not contain required keys %s" - % ", ".join(required - found) - ) - - -_GFD = TypeVar("_GFD", bound="generic_fn_descriptor[Any]") - - -class generic_fn_descriptor(Generic[_T_co]): - """Descriptor which proxies a function when the attribute is not - present in dict - - This superclass is organized in a particular way with "memoized" and - "non-memoized" implementation classes that are hidden from type checkers, - as Mypy seems to not be able to handle seeing multiple kinds of descriptor - classes used for the same attribute. - - """ - - fget: Callable[..., _T_co] - __doc__: Optional[str] - __name__: str - - def __init__(self, fget: Callable[..., _T_co], doc: Optional[str] = None): - self.fget = fget - self.__doc__ = doc or fget.__doc__ - self.__name__ = fget.__name__ - - @overload - def __get__(self: _GFD, obj: None, cls: Any) -> _GFD: ... - - @overload - def __get__(self, obj: object, cls: Any) -> _T_co: ... - - def __get__(self: _GFD, obj: Any, cls: Any) -> Union[_GFD, _T_co]: - raise NotImplementedError() - - if TYPE_CHECKING: - - def __set__(self, instance: Any, value: Any) -> None: ... - - def __delete__(self, instance: Any) -> None: ... - - def _reset(self, obj: Any) -> None: - raise NotImplementedError() - - @classmethod - def reset(cls, obj: Any, name: str) -> None: - raise NotImplementedError() - - -class _non_memoized_property(generic_fn_descriptor[_T_co]): - """a plain descriptor that proxies a function. - - primary rationale is to provide a plain attribute that's - compatible with memoized_property which is also recognized as equivalent - by mypy. - - """ - - if not TYPE_CHECKING: - - def __get__(self, obj, cls): - if obj is None: - return self - return self.fget(obj) - - -class _memoized_property(generic_fn_descriptor[_T_co]): - """A read-only @property that is only evaluated once.""" - - if not TYPE_CHECKING: - - def __get__(self, obj, cls): - if obj is None: - return self - obj.__dict__[self.__name__] = result = self.fget(obj) - return result - - def _reset(self, obj): - _memoized_property.reset(obj, self.__name__) - - @classmethod - def reset(cls, obj, name): - obj.__dict__.pop(name, None) - - -# despite many attempts to get Mypy to recognize an overridden descriptor -# where one is memoized and the other isn't, there seems to be no reliable -# way other than completely deceiving the type checker into thinking there -# is just one single descriptor type everywhere. Otherwise, if a superclass -# has non-memoized and subclass has memoized, that requires -# "class memoized(non_memoized)". but then if a superclass has memoized and -# superclass has non-memoized, the class hierarchy of the descriptors -# would need to be reversed; "class non_memoized(memoized)". so there's no -# way to achieve this. -# additional issues, RO properties: -# https://github.com/python/mypy/issues/12440 -if TYPE_CHECKING: - # allow memoized and non-memoized to be freely mixed by having them - # be the same class - memoized_property = generic_fn_descriptor - non_memoized_property = generic_fn_descriptor - - # for read only situations, mypy only sees @property as read only. - # read only is needed when a subtype specializes the return type - # of a property, meaning assignment needs to be disallowed - ro_memoized_property = property - ro_non_memoized_property = property - -else: - memoized_property = ro_memoized_property = _memoized_property - non_memoized_property = ro_non_memoized_property = _non_memoized_property - - -def memoized_instancemethod(fn: _F) -> _F: - """Decorate a method memoize its return value. - - Best applied to no-arg methods: memoization is not sensitive to - argument values, and will always return the same value even when - called with different arguments. - - """ - - def oneshot(self, *args, **kw): - result = fn(self, *args, **kw) - - def memo(*a, **kw): - return result - - memo.__name__ = fn.__name__ - memo.__doc__ = fn.__doc__ - self.__dict__[fn.__name__] = memo - return result - - return update_wrapper(oneshot, fn) # type: ignore - - -class HasMemoized: - """A mixin class that maintains the names of memoized elements in a - collection for easy cache clearing, generative, etc. - - """ - - if not TYPE_CHECKING: - # support classes that want to have __slots__ with an explicit - # slot for __dict__. not sure if that requires base __slots__ here. - __slots__ = () - - _memoized_keys: FrozenSet[str] = frozenset() - - def _reset_memoizations(self) -> None: - for elem in self._memoized_keys: - self.__dict__.pop(elem, None) - - def _assert_no_memoizations(self) -> None: - for elem in self._memoized_keys: - assert elem not in self.__dict__ - - def _set_memoized_attribute(self, key: str, value: Any) -> None: - self.__dict__[key] = value - self._memoized_keys |= {key} - - class memoized_attribute(memoized_property[_T]): - """A read-only @property that is only evaluated once. - - :meta private: - - """ - - fget: Callable[..., _T] - __doc__: Optional[str] - __name__: str - - def __init__(self, fget: Callable[..., _T], doc: Optional[str] = None): - self.fget = fget - self.__doc__ = doc or fget.__doc__ - self.__name__ = fget.__name__ - - @overload - def __get__(self: _MA, obj: None, cls: Any) -> _MA: ... - - @overload - def __get__(self, obj: Any, cls: Any) -> _T: ... - - def __get__(self, obj, cls): - if obj is None: - return self - obj.__dict__[self.__name__] = result = self.fget(obj) - obj._memoized_keys |= {self.__name__} - return result - - @classmethod - def memoized_instancemethod(cls, fn: _F) -> _F: - """Decorate a method memoize its return value. - - :meta private: - - """ - - def oneshot(self: Any, *args: Any, **kw: Any) -> Any: - result = fn(self, *args, **kw) - - def memo(*a, **kw): - return result - - memo.__name__ = fn.__name__ - memo.__doc__ = fn.__doc__ - self.__dict__[fn.__name__] = memo - self._memoized_keys |= {fn.__name__} - return result - - return update_wrapper(oneshot, fn) # type: ignore - - -if TYPE_CHECKING: - HasMemoized_ro_memoized_attribute = property -else: - HasMemoized_ro_memoized_attribute = HasMemoized.memoized_attribute - - -class MemoizedSlots: - """Apply memoized items to an object using a __getattr__ scheme. - - This allows the functionality of memoized_property and - memoized_instancemethod to be available to a class using __slots__. - - """ - - __slots__ = () - - def _fallback_getattr(self, key): - raise AttributeError(key) - - def __getattr__(self, key: str) -> Any: - if key.startswith("_memoized_attr_") or key.startswith( - "_memoized_method_" - ): - raise AttributeError(key) - # to avoid recursion errors when interacting with other __getattr__ - # schemes that refer to this one, when testing for memoized method - # look at __class__ only rather than going into __getattr__ again. - elif hasattr(self.__class__, f"_memoized_attr_{key}"): - value = getattr(self, f"_memoized_attr_{key}")() - setattr(self, key, value) - return value - elif hasattr(self.__class__, f"_memoized_method_{key}"): - fn = getattr(self, f"_memoized_method_{key}") - - def oneshot(*args, **kw): - result = fn(*args, **kw) - - def memo(*a, **kw): - return result - - memo.__name__ = fn.__name__ - memo.__doc__ = fn.__doc__ - setattr(self, key, memo) - return result - - oneshot.__doc__ = fn.__doc__ - return oneshot - else: - return self._fallback_getattr(key) - - -# from paste.deploy.converters -def asbool(obj: Any) -> bool: - if isinstance(obj, str): - obj = obj.strip().lower() - if obj in ["true", "yes", "on", "y", "t", "1"]: - return True - elif obj in ["false", "no", "off", "n", "f", "0"]: - return False - else: - raise ValueError("String is not true/false: %r" % obj) - return bool(obj) - - -def bool_or_str(*text: str) -> Callable[[str], Union[str, bool]]: - """Return a callable that will evaluate a string as - boolean, or one of a set of "alternate" string values. - - """ - - def bool_or_value(obj: str) -> Union[str, bool]: - if obj in text: - return obj - else: - return asbool(obj) - - return bool_or_value - - -def asint(value: Any) -> Optional[int]: - """Coerce to integer.""" - - if value is None: - return value - return int(value) - - -def coerce_kw_type( - kw: Dict[str, Any], - key: str, - type_: Type[Any], - flexi_bool: bool = True, - dest: Optional[Dict[str, Any]] = None, -) -> None: - r"""If 'key' is present in dict 'kw', coerce its value to type 'type\_' if - necessary. If 'flexi_bool' is True, the string '0' is considered false - when coercing to boolean. - """ - - if dest is None: - dest = kw - - if ( - key in kw - and (not isinstance(type_, type) or not isinstance(kw[key], type_)) - and kw[key] is not None - ): - if type_ is bool and flexi_bool: - dest[key] = asbool(kw[key]) - else: - dest[key] = type_(kw[key]) - - -def constructor_key(obj: Any, cls: Type[Any]) -> Tuple[Any, ...]: - """Produce a tuple structure that is cacheable using the __dict__ of - obj to retrieve values - - """ - names = get_cls_kwargs(cls) - return (cls,) + tuple( - (k, obj.__dict__[k]) for k in names if k in obj.__dict__ - ) - - -def constructor_copy(obj: _T, cls: Type[_T], *args: Any, **kw: Any) -> _T: - """Instantiate cls using the __dict__ of obj as constructor arguments. - - Uses inspect to match the named arguments of ``cls``. - - """ - - names = get_cls_kwargs(cls) - kw.update( - (k, obj.__dict__[k]) for k in names.difference(kw) if k in obj.__dict__ - ) - return cls(*args, **kw) - - -def counter() -> Callable[[], int]: - """Return a threadsafe counter function.""" - - lock = threading.Lock() - counter = itertools.count(1) - - # avoid the 2to3 "next" transformation... - def _next(): - with lock: - return next(counter) - - return _next - - -def duck_type_collection( - specimen: Any, default: Optional[Type[Any]] = None -) -> Optional[Type[Any]]: - """Given an instance or class, guess if it is or is acting as one of - the basic collection types: list, set and dict. If the __emulates__ - property is present, return that preferentially. - """ - - if hasattr(specimen, "__emulates__"): - # canonicalize set vs sets.Set to a standard: the builtin set - if specimen.__emulates__ is not None and issubclass( - specimen.__emulates__, set - ): - return set - else: - return specimen.__emulates__ # type: ignore - - isa = issubclass if isinstance(specimen, type) else isinstance - if isa(specimen, list): - return list - elif isa(specimen, set): - return set - elif isa(specimen, dict): - return dict - - if hasattr(specimen, "append"): - return list - elif hasattr(specimen, "add"): - return set - elif hasattr(specimen, "set"): - return dict - else: - return default - - -def assert_arg_type( - arg: Any, argtype: Union[Tuple[Type[Any], ...], Type[Any]], name: str -) -> Any: - if isinstance(arg, argtype): - return arg - else: - if isinstance(argtype, tuple): - raise exc.ArgumentError( - "Argument '%s' is expected to be one of type %s, got '%s'" - % (name, " or ".join("'%s'" % a for a in argtype), type(arg)) - ) - else: - raise exc.ArgumentError( - "Argument '%s' is expected to be of type '%s', got '%s'" - % (name, argtype, type(arg)) - ) - - -def dictlike_iteritems(dictlike): - """Return a (key, value) iterator for almost any dict-like object.""" - - if hasattr(dictlike, "items"): - return list(dictlike.items()) - - getter = getattr(dictlike, "__getitem__", getattr(dictlike, "get", None)) - if getter is None: - raise TypeError("Object '%r' is not dict-like" % dictlike) - - if hasattr(dictlike, "iterkeys"): - - def iterator(): - for key in dictlike.iterkeys(): - assert getter is not None - yield key, getter(key) - - return iterator() - elif hasattr(dictlike, "keys"): - return iter((key, getter(key)) for key in dictlike.keys()) - else: - raise TypeError("Object '%r' is not dict-like" % dictlike) - - -class classproperty(property): - """A decorator that behaves like @property except that operates - on classes rather than instances. - - The decorator is currently special when using the declarative - module, but note that the - :class:`~.sqlalchemy.ext.declarative.declared_attr` - decorator should be used for this purpose with declarative. - - """ - - fget: Callable[[Any], Any] - - def __init__(self, fget: Callable[[Any], Any], *arg: Any, **kw: Any): - super().__init__(fget, *arg, **kw) - self.__doc__ = fget.__doc__ - - def __get__(self, obj: Any, cls: Optional[type] = None) -> Any: - return self.fget(cls) - - -class hybridproperty(Generic[_T]): - def __init__(self, func: Callable[..., _T]): - self.func = func - self.clslevel = func - - def __get__(self, instance: Any, owner: Any) -> _T: - if instance is None: - clsval = self.clslevel(owner) - return clsval - else: - return self.func(instance) - - def classlevel(self, func: Callable[..., Any]) -> hybridproperty[_T]: - self.clslevel = func - return self - - -class rw_hybridproperty(Generic[_T]): - def __init__(self, func: Callable[..., _T]): - self.func = func - self.clslevel = func - self.setfn: Optional[Callable[..., Any]] = None - - def __get__(self, instance: Any, owner: Any) -> _T: - if instance is None: - clsval = self.clslevel(owner) - return clsval - else: - return self.func(instance) - - def __set__(self, instance: Any, value: Any) -> None: - assert self.setfn is not None - self.setfn(instance, value) - - def setter(self, func: Callable[..., Any]) -> rw_hybridproperty[_T]: - self.setfn = func - return self - - def classlevel(self, func: Callable[..., Any]) -> rw_hybridproperty[_T]: - self.clslevel = func - return self - - -class hybridmethod(Generic[_T]): - """Decorate a function as cls- or instance- level.""" - - def __init__(self, func: Callable[..., _T]): - self.func = self.__func__ = func - self.clslevel = func - - def __get__(self, instance: Any, owner: Any) -> Callable[..., _T]: - if instance is None: - return self.clslevel.__get__(owner, owner.__class__) # type:ignore - else: - return self.func.__get__(instance, owner) # type:ignore - - def classlevel(self, func: Callable[..., Any]) -> hybridmethod[_T]: - self.clslevel = func - return self - - -class symbol(int): - """A constant symbol. - - >>> symbol('foo') is symbol('foo') - True - >>> symbol('foo') - - - A slight refinement of the MAGICCOOKIE=object() pattern. The primary - advantage of symbol() is its repr(). They are also singletons. - - Repeated calls of symbol('name') will all return the same instance. - - """ - - name: str - - symbols: Dict[str, symbol] = {} - _lock = threading.Lock() - - def __new__( - cls, - name: str, - doc: Optional[str] = None, - canonical: Optional[int] = None, - ) -> symbol: - with cls._lock: - sym = cls.symbols.get(name) - if sym is None: - assert isinstance(name, str) - if canonical is None: - canonical = hash(name) - sym = int.__new__(symbol, canonical) - sym.name = name - if doc: - sym.__doc__ = doc - - # NOTE: we should ultimately get rid of this global thing, - # however, currently it is to support pickling. The best - # change would be when we are on py3.11 at a minimum, we - # switch to stdlib enum.IntFlag. - cls.symbols[name] = sym - else: - if canonical and canonical != sym: - raise TypeError( - f"Can't replace canonical symbol for {name!r} " - f"with new int value {canonical}" - ) - return sym - - def __reduce__(self): - return symbol, (self.name, "x", int(self)) - - def __str__(self): - return repr(self) - - def __repr__(self): - return f"symbol({self.name!r})" - - -class _IntFlagMeta(type): - def __init__( - cls, - classname: str, - bases: Tuple[Type[Any], ...], - dict_: Dict[str, Any], - **kw: Any, - ) -> None: - items: List[symbol] - cls._items = items = [] - for k, v in dict_.items(): - if isinstance(v, int): - sym = symbol(k, canonical=v) - elif not k.startswith("_"): - raise TypeError("Expected integer values for IntFlag") - else: - continue - setattr(cls, k, sym) - items.append(sym) - - cls.__members__ = _collections.immutabledict( - {sym.name: sym for sym in items} - ) - - def __iter__(self) -> Iterator[symbol]: - raise NotImplementedError( - "iter not implemented to ensure compatibility with " - "Python 3.11 IntFlag. Please use __members__. See " - "https://github.com/python/cpython/issues/99304" - ) - - -class _FastIntFlag(metaclass=_IntFlagMeta): - """An 'IntFlag' copycat that isn't slow when performing bitwise - operations. - - the ``FastIntFlag`` class will return ``enum.IntFlag`` under TYPE_CHECKING - and ``_FastIntFlag`` otherwise. - - """ - - -if TYPE_CHECKING: - from enum import IntFlag - - FastIntFlag = IntFlag -else: - FastIntFlag = _FastIntFlag - - -_E = TypeVar("_E", bound=enum.Enum) - - -def parse_user_argument_for_enum( - arg: Any, - choices: Dict[_E, List[Any]], - name: str, - resolve_symbol_names: bool = False, -) -> Optional[_E]: - """Given a user parameter, parse the parameter into a chosen value - from a list of choice objects, typically Enum values. - - The user argument can be a string name that matches the name of a - symbol, or the symbol object itself, or any number of alternate choices - such as True/False/ None etc. - - :param arg: the user argument. - :param choices: dictionary of enum values to lists of possible - entries for each. - :param name: name of the argument. Used in an :class:`.ArgumentError` - that is raised if the parameter doesn't match any available argument. - - """ - for enum_value, choice in choices.items(): - if arg is enum_value: - return enum_value - elif resolve_symbol_names and arg == enum_value.name: - return enum_value - elif arg in choice: - return enum_value - - if arg is None: - return None - - raise exc.ArgumentError(f"Invalid value for '{name}': {arg!r}") - - -_creation_order = 1 - - -def set_creation_order(instance: Any) -> None: - """Assign a '_creation_order' sequence to the given instance. - - This allows multiple instances to be sorted in order of creation - (typically within a single thread; the counter is not particularly - threadsafe). - - """ - global _creation_order - instance._creation_order = _creation_order - _creation_order += 1 - - -def warn_exception(func: Callable[..., Any], *args: Any, **kwargs: Any) -> Any: - """executes the given function, catches all exceptions and converts to - a warning. - - """ - try: - return func(*args, **kwargs) - except Exception: - warn("%s('%s') ignored" % sys.exc_info()[0:2]) - - -def ellipses_string(value, len_=25): - try: - if len(value) > len_: - return "%s..." % value[0:len_] - else: - return value - except TypeError: - return value - - -class _hash_limit_string(str): - """A string subclass that can only be hashed on a maximum amount - of unique values. - - This is used for warnings so that we can send out parameterized warnings - without the __warningregistry__ of the module, or the non-overridable - "once" registry within warnings.py, overloading memory, - - - """ - - _hash: int - - def __new__( - cls, value: str, num: int, args: Sequence[Any] - ) -> _hash_limit_string: - interpolated = (value % args) + ( - " (this warning may be suppressed after %d occurrences)" % num - ) - self = super().__new__(cls, interpolated) - self._hash = hash("%s_%d" % (value, hash(interpolated) % num)) - return self - - def __hash__(self) -> int: - return self._hash - - def __eq__(self, other: Any) -> bool: - return hash(self) == hash(other) - - -def warn(msg: str, code: Optional[str] = None) -> None: - """Issue a warning. - - If msg is a string, :class:`.exc.SAWarning` is used as - the category. - - """ - if code: - _warnings_warn(exc.SAWarning(msg, code=code)) - else: - _warnings_warn(msg, exc.SAWarning) - - -def warn_limited(msg: str, args: Sequence[Any]) -> None: - """Issue a warning with a parameterized string, limiting the number - of registrations. - - """ - if args: - msg = _hash_limit_string(msg, 10, args) - _warnings_warn(msg, exc.SAWarning) - - -_warning_tags: Dict[CodeType, Tuple[str, Type[Warning]]] = {} - - -def tag_method_for_warnings( - message: str, category: Type[Warning] -) -> Callable[[_F], _F]: - def go(fn): - _warning_tags[fn.__code__] = (message, category) - return fn - - return go - - -_not_sa_pattern = re.compile(r"^(?:sqlalchemy\.(?!testing)|alembic\.)") - - -def _warnings_warn( - message: Union[str, Warning], - category: Optional[Type[Warning]] = None, - stacklevel: int = 2, -) -> None: - # adjust the given stacklevel to be outside of SQLAlchemy - try: - frame = sys._getframe(stacklevel) - except ValueError: - # being called from less than 3 (or given) stacklevels, weird, - # but don't crash - stacklevel = 0 - except: - # _getframe() doesn't work, weird interpreter issue, weird, - # ok, but don't crash - stacklevel = 0 - else: - stacklevel_found = warning_tag_found = False - while frame is not None: - # using __name__ here requires that we have __name__ in the - # __globals__ of the decorated string functions we make also. - # we generate this using {"__name__": fn.__module__} - if not stacklevel_found and not re.match( - _not_sa_pattern, frame.f_globals.get("__name__", "") - ): - # stop incrementing stack level if an out-of-SQLA line - # were found. - stacklevel_found = True - - # however, for the warning tag thing, we have to keep - # scanning up the whole traceback - - if frame.f_code in _warning_tags: - warning_tag_found = True - (_suffix, _category) = _warning_tags[frame.f_code] - category = category or _category - message = f"{message} ({_suffix})" - - frame = frame.f_back # type: ignore[assignment] - - if not stacklevel_found: - stacklevel += 1 - elif stacklevel_found and warning_tag_found: - break - - if category is not None: - warnings.warn(message, category, stacklevel=stacklevel + 1) - else: - warnings.warn(message, stacklevel=stacklevel + 1) - - -def only_once( - fn: Callable[..., _T], retry_on_exception: bool -) -> Callable[..., Optional[_T]]: - """Decorate the given function to be a no-op after it is called exactly - once.""" - - once = [fn] - - def go(*arg: Any, **kw: Any) -> Optional[_T]: - # strong reference fn so that it isn't garbage collected, - # which interferes with the event system's expectations - strong_fn = fn # noqa - if once: - once_fn = once.pop() - try: - return once_fn(*arg, **kw) - except: - if retry_on_exception: - once.insert(0, once_fn) - raise - - return None - - return go - - -_SQLA_RE = re.compile(r"sqlalchemy/([a-z_]+/){0,2}[a-z_]+\.py") -_UNITTEST_RE = re.compile(r"unit(?:2|test2?/)") - - -def chop_traceback( - tb: List[str], - exclude_prefix: re.Pattern[str] = _UNITTEST_RE, - exclude_suffix: re.Pattern[str] = _SQLA_RE, -) -> List[str]: - """Chop extraneous lines off beginning and end of a traceback. - - :param tb: - a list of traceback lines as returned by ``traceback.format_stack()`` - - :param exclude_prefix: - a regular expression object matching lines to skip at beginning of - ``tb`` - - :param exclude_suffix: - a regular expression object matching lines to skip at end of ``tb`` - """ - start = 0 - end = len(tb) - 1 - while start <= end and exclude_prefix.search(tb[start]): - start += 1 - while start <= end and exclude_suffix.search(tb[end]): - end -= 1 - return tb[start : end + 1] - - -NoneType = type(None) - - -def attrsetter(attrname): - code = "def set(obj, value): obj.%s = value" % attrname - env = locals().copy() - exec(code, env) - return env["set"] - - -class TypingOnly: - """A mixin class that marks a class as 'typing only', meaning it has - absolutely no methods, attributes, or runtime functionality whatsoever. - - """ - - __slots__ = () - - def __init_subclass__(cls) -> None: - if TypingOnly in cls.__bases__: - remaining = set(cls.__dict__).difference( - { - "__module__", - "__doc__", - "__slots__", - "__orig_bases__", - "__annotations__", - } - ) - if remaining: - raise AssertionError( - f"Class {cls} directly inherits TypingOnly but has " - f"additional attributes {remaining}." - ) - super().__init_subclass__() - - -class EnsureKWArg: - r"""Apply translation of functions to accept \**kw arguments if they - don't already. - - Used to ensure cross-compatibility with third party legacy code, for things - like compiler visit methods that need to accept ``**kw`` arguments, - but may have been copied from old code that didn't accept them. - - """ - - ensure_kwarg: str - """a regular expression that indicates method names for which the method - should accept ``**kw`` arguments. - - The class will scan for methods matching the name template and decorate - them if necessary to ensure ``**kw`` parameters are accepted. - - """ - - def __init_subclass__(cls) -> None: - fn_reg = cls.ensure_kwarg - clsdict = cls.__dict__ - if fn_reg: - for key in clsdict: - m = re.match(fn_reg, key) - if m: - fn = clsdict[key] - spec = compat.inspect_getfullargspec(fn) - if not spec.varkw: - wrapped = cls._wrap_w_kw(fn) - setattr(cls, key, wrapped) - super().__init_subclass__() - - @classmethod - def _wrap_w_kw(cls, fn: Callable[..., Any]) -> Callable[..., Any]: - def wrap(*arg: Any, **kw: Any) -> Any: - return fn(*arg) - - return update_wrapper(wrap, fn) - - -def wrap_callable(wrapper, fn): - """Augment functools.update_wrapper() to work with objects with - a ``__call__()`` method. - - :param fn: - object with __call__ method - - """ - if hasattr(fn, "__name__"): - return update_wrapper(wrapper, fn) - else: - _f = wrapper - _f.__name__ = fn.__class__.__name__ - if hasattr(fn, "__module__"): - _f.__module__ = fn.__module__ - - if hasattr(fn.__call__, "__doc__") and fn.__call__.__doc__: - _f.__doc__ = fn.__call__.__doc__ - elif fn.__doc__: - _f.__doc__ = fn.__doc__ - - return _f - - -def quoted_token_parser(value): - """Parse a dotted identifier with accommodation for quoted names. - - Includes support for SQL-style double quotes as a literal character. - - E.g.:: - - >>> quoted_token_parser("name") - ["name"] - >>> quoted_token_parser("schema.name") - ["schema", "name"] - >>> quoted_token_parser('"Schema"."Name"') - ['Schema', 'Name'] - >>> quoted_token_parser('"Schema"."Name""Foo"') - ['Schema', 'Name""Foo'] - - """ - - if '"' not in value: - return value.split(".") - - # 0 = outside of quotes - # 1 = inside of quotes - state = 0 - result: List[List[str]] = [[]] - idx = 0 - lv = len(value) - while idx < lv: - char = value[idx] - if char == '"': - if state == 1 and idx < lv - 1 and value[idx + 1] == '"': - result[-1].append('"') - idx += 1 - else: - state ^= 1 - elif char == "." and state == 0: - result.append([]) - else: - result[-1].append(char) - idx += 1 - - return ["".join(token) for token in result] - - -def add_parameter_text(params: Any, text: str) -> Callable[[_F], _F]: - params = _collections.to_list(params) - - def decorate(fn): - doc = fn.__doc__ is not None and fn.__doc__ or "" - if doc: - doc = inject_param_text(doc, {param: text for param in params}) - fn.__doc__ = doc - return fn - - return decorate - - -def _dedent_docstring(text: str) -> str: - split_text = text.split("\n", 1) - if len(split_text) == 1: - return text - else: - firstline, remaining = split_text - if not firstline.startswith(" "): - return firstline + "\n" + textwrap.dedent(remaining) - else: - return textwrap.dedent(text) - - -def inject_docstring_text( - given_doctext: Optional[str], injecttext: str, pos: int -) -> str: - doctext: str = _dedent_docstring(given_doctext or "") - lines = doctext.split("\n") - if len(lines) == 1: - lines.append("") - injectlines = textwrap.dedent(injecttext).split("\n") - if injectlines[0]: - injectlines.insert(0, "") - - blanks = [num for num, line in enumerate(lines) if not line.strip()] - blanks.insert(0, 0) - - inject_pos = blanks[min(pos, len(blanks) - 1)] - - lines = lines[0:inject_pos] + injectlines + lines[inject_pos:] - return "\n".join(lines) - - -_param_reg = re.compile(r"(\s+):param (.+?):") - - -def inject_param_text(doctext: str, inject_params: Dict[str, str]) -> str: - doclines = collections.deque(doctext.splitlines()) - lines = [] - - # TODO: this is not working for params like ":param case_sensitive=True:" - - to_inject = None - while doclines: - line = doclines.popleft() - - m = _param_reg.match(line) - - if to_inject is None: - if m: - param = m.group(2).lstrip("*") - if param in inject_params: - # default indent to that of :param: plus one - indent = " " * len(m.group(1)) + " " - - # but if the next line has text, use that line's - # indentation - if doclines: - m2 = re.match(r"(\s+)\S", doclines[0]) - if m2: - indent = " " * len(m2.group(1)) - - to_inject = indent + inject_params[param] - elif m: - lines.extend(["\n", to_inject, "\n"]) - to_inject = None - elif not line.rstrip(): - lines.extend([line, to_inject, "\n"]) - to_inject = None - elif line.endswith("::"): - # TODO: this still won't cover if the code example itself has - # blank lines in it, need to detect those via indentation. - lines.extend([line, doclines.popleft()]) - continue - lines.append(line) - - return "\n".join(lines) - - -def repr_tuple_names(names: List[str]) -> Optional[str]: - """Trims a list of strings from the middle and return a string of up to - four elements. Strings greater than 11 characters will be truncated""" - if len(names) == 0: - return None - flag = len(names) <= 4 - names = names[0:4] if flag else names[0:3] + names[-1:] - res = ["%s.." % name[:11] if len(name) > 11 else name for name in names] - if flag: - return ", ".join(res) - else: - return "%s, ..., %s" % (", ".join(res[0:3]), res[-1]) - - -def has_compiled_ext(raise_=False): - if HAS_CYEXTENSION: - return True - elif raise_: - raise ImportError( - "cython extensions were expected to be installed, " - "but are not present" - ) - else: - return False diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/util/preloaded.py b/venv/lib/python3.11/site-packages/sqlalchemy/util/preloaded.py deleted file mode 100644 index e91ce68..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/util/preloaded.py +++ /dev/null @@ -1,150 +0,0 @@ -# util/preloaded.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php -# mypy: allow-untyped-defs, allow-untyped-calls - -"""supplies the "preloaded" registry to resolve circular module imports at -runtime. - -""" -from __future__ import annotations - -import sys -from typing import Any -from typing import Callable -from typing import TYPE_CHECKING -from typing import TypeVar - -_FN = TypeVar("_FN", bound=Callable[..., Any]) - - -if TYPE_CHECKING: - from sqlalchemy import dialects as _dialects - from sqlalchemy import orm as _orm - from sqlalchemy.engine import cursor as _engine_cursor - from sqlalchemy.engine import default as _engine_default - from sqlalchemy.engine import reflection as _engine_reflection - from sqlalchemy.engine import result as _engine_result - from sqlalchemy.engine import url as _engine_url - from sqlalchemy.orm import attributes as _orm_attributes - from sqlalchemy.orm import base as _orm_base - from sqlalchemy.orm import clsregistry as _orm_clsregistry - from sqlalchemy.orm import decl_api as _orm_decl_api - from sqlalchemy.orm import decl_base as _orm_decl_base - from sqlalchemy.orm import dependency as _orm_dependency - from sqlalchemy.orm import descriptor_props as _orm_descriptor_props - from sqlalchemy.orm import mapperlib as _orm_mapper - from sqlalchemy.orm import properties as _orm_properties - from sqlalchemy.orm import relationships as _orm_relationships - from sqlalchemy.orm import session as _orm_session - from sqlalchemy.orm import state as _orm_state - from sqlalchemy.orm import strategies as _orm_strategies - from sqlalchemy.orm import strategy_options as _orm_strategy_options - from sqlalchemy.orm import util as _orm_util - from sqlalchemy.sql import default_comparator as _sql_default_comparator - from sqlalchemy.sql import dml as _sql_dml - from sqlalchemy.sql import elements as _sql_elements - from sqlalchemy.sql import functions as _sql_functions - from sqlalchemy.sql import naming as _sql_naming - from sqlalchemy.sql import schema as _sql_schema - from sqlalchemy.sql import selectable as _sql_selectable - from sqlalchemy.sql import sqltypes as _sql_sqltypes - from sqlalchemy.sql import traversals as _sql_traversals - from sqlalchemy.sql import util as _sql_util - - # sigh, appease mypy 0.971 which does not accept imports as instance - # variables of a module - dialects = _dialects - engine_cursor = _engine_cursor - engine_default = _engine_default - engine_reflection = _engine_reflection - engine_result = _engine_result - engine_url = _engine_url - orm_clsregistry = _orm_clsregistry - orm_base = _orm_base - orm = _orm - orm_attributes = _orm_attributes - orm_decl_api = _orm_decl_api - orm_decl_base = _orm_decl_base - orm_descriptor_props = _orm_descriptor_props - orm_dependency = _orm_dependency - orm_mapper = _orm_mapper - orm_properties = _orm_properties - orm_relationships = _orm_relationships - orm_session = _orm_session - orm_strategies = _orm_strategies - orm_strategy_options = _orm_strategy_options - orm_state = _orm_state - orm_util = _orm_util - sql_default_comparator = _sql_default_comparator - sql_dml = _sql_dml - sql_elements = _sql_elements - sql_functions = _sql_functions - sql_naming = _sql_naming - sql_selectable = _sql_selectable - sql_traversals = _sql_traversals - sql_schema = _sql_schema - sql_sqltypes = _sql_sqltypes - sql_util = _sql_util - - -class _ModuleRegistry: - """Registry of modules to load in a package init file. - - To avoid potential thread safety issues for imports that are deferred - in a function, like https://bugs.python.org/issue38884, these modules - are added to the system module cache by importing them after the packages - has finished initialization. - - A global instance is provided under the name :attr:`.preloaded`. Use - the function :func:`.preload_module` to register modules to load and - :meth:`.import_prefix` to load all the modules that start with the - given path. - - While the modules are loaded in the global module cache, it's advisable - to access them using :attr:`.preloaded` to ensure that it was actually - registered. Each registered module is added to the instance ``__dict__`` - in the form `_`, omitting ``sqlalchemy`` from the package - name. Example: ``sqlalchemy.sql.util`` becomes ``preloaded.sql_util``. - """ - - def __init__(self, prefix="sqlalchemy."): - self.module_registry = set() - self.prefix = prefix - - def preload_module(self, *deps: str) -> Callable[[_FN], _FN]: - """Adds the specified modules to the list to load. - - This method can be used both as a normal function and as a decorator. - No change is performed to the decorated object. - """ - self.module_registry.update(deps) - return lambda fn: fn - - def import_prefix(self, path: str) -> None: - """Resolve all the modules in the registry that start with the - specified path. - """ - for module in self.module_registry: - if self.prefix: - key = module.split(self.prefix)[-1].replace(".", "_") - else: - key = module - if ( - not path or module.startswith(path) - ) and key not in self.__dict__: - __import__(module, globals(), locals()) - self.__dict__[key] = globals()[key] = sys.modules[module] - - -_reg = _ModuleRegistry() -preload_module = _reg.preload_module -import_prefix = _reg.import_prefix - -# this appears to do absolutely nothing for any version of mypy -# if TYPE_CHECKING: -# def __getattr__(key: str) -> ModuleType: -# ... diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/util/queue.py b/venv/lib/python3.11/site-packages/sqlalchemy/util/queue.py deleted file mode 100644 index 99a68a3..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/util/queue.py +++ /dev/null @@ -1,322 +0,0 @@ -# util/queue.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php -# mypy: allow-untyped-defs, allow-untyped-calls - -"""An adaptation of Py2.3/2.4's Queue module which supports reentrant -behavior, using RLock instead of Lock for its mutex object. The -Queue object is used exclusively by the sqlalchemy.pool.QueuePool -class. - -This is to support the connection pool's usage of weakref callbacks to return -connections to the underlying Queue, which can in extremely -rare cases be invoked within the ``get()`` method of the Queue itself, -producing a ``put()`` inside the ``get()`` and therefore a reentrant -condition. - -""" -from __future__ import annotations - -import asyncio -from collections import deque -import threading -from time import time as _time -import typing -from typing import Any -from typing import Awaitable -from typing import Deque -from typing import Generic -from typing import Optional -from typing import TypeVar - -from .concurrency import await_fallback -from .concurrency import await_only -from .langhelpers import memoized_property - - -_T = TypeVar("_T", bound=Any) -__all__ = ["Empty", "Full", "Queue"] - - -class Empty(Exception): - "Exception raised by Queue.get(block=0)/get_nowait()." - - pass - - -class Full(Exception): - "Exception raised by Queue.put(block=0)/put_nowait()." - - pass - - -class QueueCommon(Generic[_T]): - maxsize: int - use_lifo: bool - - def __init__(self, maxsize: int = 0, use_lifo: bool = False): ... - - def empty(self) -> bool: - raise NotImplementedError() - - def full(self) -> bool: - raise NotImplementedError() - - def qsize(self) -> int: - raise NotImplementedError() - - def put_nowait(self, item: _T) -> None: - raise NotImplementedError() - - def put( - self, item: _T, block: bool = True, timeout: Optional[float] = None - ) -> None: - raise NotImplementedError() - - def get_nowait(self) -> _T: - raise NotImplementedError() - - def get(self, block: bool = True, timeout: Optional[float] = None) -> _T: - raise NotImplementedError() - - -class Queue(QueueCommon[_T]): - queue: Deque[_T] - - def __init__(self, maxsize: int = 0, use_lifo: bool = False): - """Initialize a queue object with a given maximum size. - - If `maxsize` is <= 0, the queue size is infinite. - - If `use_lifo` is True, this Queue acts like a Stack (LIFO). - """ - - self._init(maxsize) - # mutex must be held whenever the queue is mutating. All methods - # that acquire mutex must release it before returning. mutex - # is shared between the two conditions, so acquiring and - # releasing the conditions also acquires and releases mutex. - self.mutex = threading.RLock() - # Notify not_empty whenever an item is added to the queue; a - # thread waiting to get is notified then. - self.not_empty = threading.Condition(self.mutex) - # Notify not_full whenever an item is removed from the queue; - # a thread waiting to put is notified then. - self.not_full = threading.Condition(self.mutex) - # If this queue uses LIFO or FIFO - self.use_lifo = use_lifo - - def qsize(self) -> int: - """Return the approximate size of the queue (not reliable!).""" - - with self.mutex: - return self._qsize() - - def empty(self) -> bool: - """Return True if the queue is empty, False otherwise (not - reliable!).""" - - with self.mutex: - return self._empty() - - def full(self) -> bool: - """Return True if the queue is full, False otherwise (not - reliable!).""" - - with self.mutex: - return self._full() - - def put( - self, item: _T, block: bool = True, timeout: Optional[float] = None - ) -> None: - """Put an item into the queue. - - If optional args `block` is True and `timeout` is None (the - default), block if necessary until a free slot is - available. If `timeout` is a positive number, it blocks at - most `timeout` seconds and raises the ``Full`` exception if no - free slot was available within that time. Otherwise (`block` - is false), put an item on the queue if a free slot is - immediately available, else raise the ``Full`` exception - (`timeout` is ignored in that case). - """ - - with self.not_full: - if not block: - if self._full(): - raise Full - elif timeout is None: - while self._full(): - self.not_full.wait() - else: - if timeout < 0: - raise ValueError("'timeout' must be a positive number") - endtime = _time() + timeout - while self._full(): - remaining = endtime - _time() - if remaining <= 0.0: - raise Full - self.not_full.wait(remaining) - self._put(item) - self.not_empty.notify() - - def put_nowait(self, item: _T) -> None: - """Put an item into the queue without blocking. - - Only enqueue the item if a free slot is immediately available. - Otherwise raise the ``Full`` exception. - """ - return self.put(item, False) - - def get(self, block: bool = True, timeout: Optional[float] = None) -> _T: - """Remove and return an item from the queue. - - If optional args `block` is True and `timeout` is None (the - default), block if necessary until an item is available. If - `timeout` is a positive number, it blocks at most `timeout` - seconds and raises the ``Empty`` exception if no item was - available within that time. Otherwise (`block` is false), - return an item if one is immediately available, else raise the - ``Empty`` exception (`timeout` is ignored in that case). - - """ - with self.not_empty: - if not block: - if self._empty(): - raise Empty - elif timeout is None: - while self._empty(): - self.not_empty.wait() - else: - if timeout < 0: - raise ValueError("'timeout' must be a positive number") - endtime = _time() + timeout - while self._empty(): - remaining = endtime - _time() - if remaining <= 0.0: - raise Empty - self.not_empty.wait(remaining) - item = self._get() - self.not_full.notify() - return item - - def get_nowait(self) -> _T: - """Remove and return an item from the queue without blocking. - - Only get an item if one is immediately available. Otherwise - raise the ``Empty`` exception. - """ - - return self.get(False) - - def _init(self, maxsize: int) -> None: - self.maxsize = maxsize - self.queue = deque() - - def _qsize(self) -> int: - return len(self.queue) - - def _empty(self) -> bool: - return not self.queue - - def _full(self) -> bool: - return self.maxsize > 0 and len(self.queue) == self.maxsize - - def _put(self, item: _T) -> None: - self.queue.append(item) - - def _get(self) -> _T: - if self.use_lifo: - # LIFO - return self.queue.pop() - else: - # FIFO - return self.queue.popleft() - - -class AsyncAdaptedQueue(QueueCommon[_T]): - if typing.TYPE_CHECKING: - - @staticmethod - def await_(coroutine: Awaitable[Any]) -> _T: ... - - else: - await_ = staticmethod(await_only) - - def __init__(self, maxsize: int = 0, use_lifo: bool = False): - self.use_lifo = use_lifo - self.maxsize = maxsize - - def empty(self) -> bool: - return self._queue.empty() - - def full(self): - return self._queue.full() - - def qsize(self): - return self._queue.qsize() - - @memoized_property - def _queue(self) -> asyncio.Queue[_T]: - # Delay creation of the queue until it is first used, to avoid - # binding it to a possibly wrong event loop. - # By delaying the creation of the pool we accommodate the common - # usage pattern of instantiating the engine at module level, where a - # different event loop is in present compared to when the application - # is actually run. - - queue: asyncio.Queue[_T] - - if self.use_lifo: - queue = asyncio.LifoQueue(maxsize=self.maxsize) - else: - queue = asyncio.Queue(maxsize=self.maxsize) - return queue - - def put_nowait(self, item: _T) -> None: - try: - self._queue.put_nowait(item) - except asyncio.QueueFull as err: - raise Full() from err - - def put( - self, item: _T, block: bool = True, timeout: Optional[float] = None - ) -> None: - if not block: - return self.put_nowait(item) - - try: - if timeout is not None: - self.await_(asyncio.wait_for(self._queue.put(item), timeout)) - else: - self.await_(self._queue.put(item)) - except (asyncio.QueueFull, asyncio.TimeoutError) as err: - raise Full() from err - - def get_nowait(self) -> _T: - try: - return self._queue.get_nowait() - except asyncio.QueueEmpty as err: - raise Empty() from err - - def get(self, block: bool = True, timeout: Optional[float] = None) -> _T: - if not block: - return self.get_nowait() - - try: - if timeout is not None: - return self.await_( - asyncio.wait_for(self._queue.get(), timeout) - ) - else: - return self.await_(self._queue.get()) - except (asyncio.QueueEmpty, asyncio.TimeoutError) as err: - raise Empty() from err - - -class FallbackAsyncAdaptedQueue(AsyncAdaptedQueue[_T]): - if not typing.TYPE_CHECKING: - await_ = staticmethod(await_fallback) diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/util/tool_support.py b/venv/lib/python3.11/site-packages/sqlalchemy/util/tool_support.py deleted file mode 100644 index a203a2a..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/util/tool_support.py +++ /dev/null @@ -1,201 +0,0 @@ -# util/tool_support.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php -# mypy: allow-untyped-defs, allow-untyped-calls -"""support routines for the helpers in tools/. - -These aren't imported by the enclosing util package as the are not -needed for normal library use. - -""" -from __future__ import annotations - -from argparse import ArgumentParser -from argparse import Namespace -import contextlib -import difflib -import os -from pathlib import Path -import shlex -import shutil -import subprocess -import sys -from typing import Any -from typing import Dict -from typing import Iterator -from typing import Optional -from typing import Union - -from . import compat - - -class code_writer_cmd: - parser: ArgumentParser - args: Namespace - suppress_output: bool - diffs_detected: bool - source_root: Path - pyproject_toml_path: Path - - def __init__(self, tool_script: str): - self.source_root = Path(tool_script).parent.parent - self.pyproject_toml_path = self.source_root / Path("pyproject.toml") - assert self.pyproject_toml_path.exists() - - self.parser = ArgumentParser() - self.parser.add_argument( - "--stdout", - action="store_true", - help="Write to stdout instead of saving to file", - ) - self.parser.add_argument( - "-c", - "--check", - help="Don't write the files back, just return the " - "status. Return code 0 means nothing would change. " - "Return code 1 means some files would be reformatted", - action="store_true", - ) - - def run_zimports(self, tempfile: str) -> None: - self._run_console_script( - str(tempfile), - { - "entrypoint": "zimports", - "options": f"--toml-config {self.pyproject_toml_path}", - }, - ) - - def run_black(self, tempfile: str) -> None: - self._run_console_script( - str(tempfile), - { - "entrypoint": "black", - "options": f"--config {self.pyproject_toml_path}", - }, - ) - - def _run_console_script(self, path: str, options: Dict[str, Any]) -> None: - """Run a Python console application from within the process. - - Used for black, zimports - - """ - - is_posix = os.name == "posix" - - entrypoint_name = options["entrypoint"] - - for entry in compat.importlib_metadata_get("console_scripts"): - if entry.name == entrypoint_name: - impl = entry - break - else: - raise Exception( - f"Could not find entrypoint console_scripts.{entrypoint_name}" - ) - cmdline_options_str = options.get("options", "") - cmdline_options_list = shlex.split( - cmdline_options_str, posix=is_posix - ) + [path] - - kw: Dict[str, Any] = {} - if self.suppress_output: - kw["stdout"] = kw["stderr"] = subprocess.DEVNULL - - subprocess.run( - [ - sys.executable, - "-c", - "import %s; %s.%s()" % (impl.module, impl.module, impl.attr), - ] - + cmdline_options_list, - cwd=str(self.source_root), - **kw, - ) - - def write_status(self, *text: str) -> None: - if not self.suppress_output: - sys.stderr.write(" ".join(text)) - - def write_output_file_from_text( - self, text: str, destination_path: Union[str, Path] - ) -> None: - if self.args.check: - self._run_diff(destination_path, source=text) - elif self.args.stdout: - print(text) - else: - self.write_status(f"Writing {destination_path}...") - Path(destination_path).write_text( - text, encoding="utf-8", newline="\n" - ) - self.write_status("done\n") - - def write_output_file_from_tempfile( - self, tempfile: str, destination_path: str - ) -> None: - if self.args.check: - self._run_diff(destination_path, source_file=tempfile) - os.unlink(tempfile) - elif self.args.stdout: - with open(tempfile) as tf: - print(tf.read()) - os.unlink(tempfile) - else: - self.write_status(f"Writing {destination_path}...") - shutil.move(tempfile, destination_path) - self.write_status("done\n") - - def _run_diff( - self, - destination_path: Union[str, Path], - *, - source: Optional[str] = None, - source_file: Optional[str] = None, - ) -> None: - if source_file: - with open(source_file, encoding="utf-8") as tf: - source_lines = list(tf) - elif source is not None: - source_lines = source.splitlines(keepends=True) - else: - assert False, "source or source_file is required" - - with open(destination_path, encoding="utf-8") as dp: - d = difflib.unified_diff( - list(dp), - source_lines, - fromfile=Path(destination_path).as_posix(), - tofile="", - n=3, - lineterm="\n", - ) - d_as_list = list(d) - if d_as_list: - self.diffs_detected = True - print("".join(d_as_list)) - - @contextlib.contextmanager - def add_arguments(self) -> Iterator[ArgumentParser]: - yield self.parser - - @contextlib.contextmanager - def run_program(self) -> Iterator[None]: - self.args = self.parser.parse_args() - if self.args.check: - self.diffs_detected = False - self.suppress_output = True - elif self.args.stdout: - self.suppress_output = True - else: - self.suppress_output = False - yield - - if self.args.check and self.diffs_detected: - sys.exit(1) - else: - sys.exit(0) diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/util/topological.py b/venv/lib/python3.11/site-packages/sqlalchemy/util/topological.py deleted file mode 100644 index aebbb43..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/util/topological.py +++ /dev/null @@ -1,120 +0,0 @@ -# util/topological.py -# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php - -"""Topological sorting algorithms.""" - -from __future__ import annotations - -from typing import Any -from typing import Collection -from typing import DefaultDict -from typing import Iterable -from typing import Iterator -from typing import Sequence -from typing import Set -from typing import Tuple -from typing import TypeVar - -from .. import util -from ..exc import CircularDependencyError - -_T = TypeVar("_T", bound=Any) - -__all__ = ["sort", "sort_as_subsets", "find_cycles"] - - -def sort_as_subsets( - tuples: Collection[Tuple[_T, _T]], allitems: Collection[_T] -) -> Iterator[Sequence[_T]]: - edges: DefaultDict[_T, Set[_T]] = util.defaultdict(set) - for parent, child in tuples: - edges[child].add(parent) - - todo = list(allitems) - todo_set = set(allitems) - - while todo_set: - output = [] - for node in todo: - if todo_set.isdisjoint(edges[node]): - output.append(node) - - if not output: - raise CircularDependencyError( - "Circular dependency detected.", - find_cycles(tuples, allitems), - _gen_edges(edges), - ) - - todo_set.difference_update(output) - todo = [t for t in todo if t in todo_set] - yield output - - -def sort( - tuples: Collection[Tuple[_T, _T]], - allitems: Collection[_T], - deterministic_order: bool = True, -) -> Iterator[_T]: - """sort the given list of items by dependency. - - 'tuples' is a list of tuples representing a partial ordering. - - deterministic_order is no longer used, the order is now always - deterministic given the order of "allitems". the flag is there - for backwards compatibility with Alembic. - - """ - - for set_ in sort_as_subsets(tuples, allitems): - yield from set_ - - -def find_cycles( - tuples: Iterable[Tuple[_T, _T]], allitems: Iterable[_T] -) -> Set[_T]: - # adapted from: - # https://neopythonic.blogspot.com/2009/01/detecting-cycles-in-directed-graph.html - - edges: DefaultDict[_T, Set[_T]] = util.defaultdict(set) - for parent, child in tuples: - edges[parent].add(child) - nodes_to_test = set(edges) - - output = set() - - # we'd like to find all nodes that are - # involved in cycles, so we do the full - # pass through the whole thing for each - # node in the original list. - - # we can go just through parent edge nodes. - # if a node is only a child and never a parent, - # by definition it can't be part of a cycle. same - # if it's not in the edges at all. - for node in nodes_to_test: - stack = [node] - todo = nodes_to_test.difference(stack) - while stack: - top = stack[-1] - for node in edges[top]: - if node in stack: - cyc = stack[stack.index(node) :] - todo.difference_update(cyc) - output.update(cyc) - - if node in todo: - stack.append(node) - todo.remove(node) - break - else: - node = stack.pop() - return output - - -def _gen_edges(edges: DefaultDict[_T, Set[_T]]) -> Set[Tuple[_T, _T]]: - return {(right, left) for left in edges for right in edges[left]} diff --git a/venv/lib/python3.11/site-packages/sqlalchemy/util/typing.py b/venv/lib/python3.11/site-packages/sqlalchemy/util/typing.py deleted file mode 100644 index 2d9e225..0000000 --- a/venv/lib/python3.11/site-packages/sqlalchemy/util/typing.py +++ /dev/null @@ -1,580 +0,0 @@ -# util/typing.py -# Copyright (C) 2022-2024 the SQLAlchemy authors and contributors -# -# -# This module is part of SQLAlchemy and is released under -# the MIT License: https://www.opensource.org/licenses/mit-license.php -# mypy: allow-untyped-defs, allow-untyped-calls - -from __future__ import annotations - -import builtins -import collections.abc as collections_abc -import re -import sys -import typing -from typing import Any -from typing import Callable -from typing import cast -from typing import Dict -from typing import ForwardRef -from typing import Generic -from typing import Iterable -from typing import Mapping -from typing import NewType -from typing import NoReturn -from typing import Optional -from typing import overload -from typing import Set -from typing import Tuple -from typing import Type -from typing import TYPE_CHECKING -from typing import TypeVar -from typing import Union - -from . import compat - -if True: # zimports removes the tailing comments - from typing_extensions import Annotated as Annotated # 3.8 - from typing_extensions import Concatenate as Concatenate # 3.10 - from typing_extensions import ( - dataclass_transform as dataclass_transform, # 3.11, - ) - from typing_extensions import Final as Final # 3.8 - from typing_extensions import final as final # 3.8 - from typing_extensions import get_args as get_args # 3.10 - from typing_extensions import get_origin as get_origin # 3.10 - from typing_extensions import Literal as Literal # 3.8 - from typing_extensions import NotRequired as NotRequired # 3.11 - from typing_extensions import ParamSpec as ParamSpec # 3.10 - from typing_extensions import Protocol as Protocol # 3.8 - from typing_extensions import SupportsIndex as SupportsIndex # 3.8 - from typing_extensions import TypeAlias as TypeAlias # 3.10 - from typing_extensions import TypedDict as TypedDict # 3.8 - from typing_extensions import TypeGuard as TypeGuard # 3.10 - from typing_extensions import Self as Self # 3.11 - from typing_extensions import TypeAliasType as TypeAliasType # 3.12 - -_T = TypeVar("_T", bound=Any) -_KT = TypeVar("_KT") -_KT_co = TypeVar("_KT_co", covariant=True) -_KT_contra = TypeVar("_KT_contra", contravariant=True) -_VT = TypeVar("_VT") -_VT_co = TypeVar("_VT_co", covariant=True) - - -if compat.py310: - # why they took until py310 to put this in stdlib is beyond me, - # I've been wanting it since py27 - from types import NoneType as NoneType -else: - NoneType = type(None) # type: ignore - -NoneFwd = ForwardRef("None") - -typing_get_args = get_args -typing_get_origin = get_origin - - -_AnnotationScanType = Union[ - Type[Any], str, ForwardRef, NewType, TypeAliasType, "GenericProtocol[Any]" -] - - -class ArgsTypeProcotol(Protocol): - """protocol for types that have ``__args__`` - - there's no public interface for this AFAIK - - """ - - __args__: Tuple[_AnnotationScanType, ...] - - -class GenericProtocol(Protocol[_T]): - """protocol for generic types. - - this since Python.typing _GenericAlias is private - - """ - - __args__: Tuple[_AnnotationScanType, ...] - __origin__: Type[_T] - - # Python's builtin _GenericAlias has this method, however builtins like - # list, dict, etc. do not, even though they have ``__origin__`` and - # ``__args__`` - # - # def copy_with(self, params: Tuple[_AnnotationScanType, ...]) -> Type[_T]: - # ... - - -# copied from TypeShed, required in order to implement -# MutableMapping.update() -class SupportsKeysAndGetItem(Protocol[_KT, _VT_co]): - def keys(self) -> Iterable[_KT]: ... - - def __getitem__(self, __k: _KT) -> _VT_co: ... - - -# work around https://github.com/microsoft/pyright/issues/3025 -_LiteralStar = Literal["*"] - - -def de_stringify_annotation( - cls: Type[Any], - annotation: _AnnotationScanType, - originating_module: str, - locals_: Mapping[str, Any], - *, - str_cleanup_fn: Optional[Callable[[str, str], str]] = None, - include_generic: bool = False, - _already_seen: Optional[Set[Any]] = None, -) -> Type[Any]: - """Resolve annotations that may be string based into real objects. - - This is particularly important if a module defines "from __future__ import - annotations", as everything inside of __annotations__ is a string. We want - to at least have generic containers like ``Mapped``, ``Union``, ``List``, - etc. - - """ - # looked at typing.get_type_hints(), looked at pydantic. We need much - # less here, and we here try to not use any private typing internals - # or construct ForwardRef objects which is documented as something - # that should be avoided. - - original_annotation = annotation - - if is_fwd_ref(annotation): - annotation = annotation.__forward_arg__ - - if isinstance(annotation, str): - if str_cleanup_fn: - annotation = str_cleanup_fn(annotation, originating_module) - - annotation = eval_expression( - annotation, originating_module, locals_=locals_, in_class=cls - ) - - if ( - include_generic - and is_generic(annotation) - and not is_literal(annotation) - ): - if _already_seen is None: - _already_seen = set() - - if annotation in _already_seen: - # only occurs recursively. outermost return type - # will always be Type. - # the element here will be either ForwardRef or - # Optional[ForwardRef] - return original_annotation # type: ignore - else: - _already_seen.add(annotation) - - elements = tuple( - de_stringify_annotation( - cls, - elem, - originating_module, - locals_, - str_cleanup_fn=str_cleanup_fn, - include_generic=include_generic, - _already_seen=_already_seen, - ) - for elem in annotation.__args__ - ) - - return _copy_generic_annotation_with(annotation, elements) - return annotation # type: ignore - - -def _copy_generic_annotation_with( - annotation: GenericProtocol[_T], elements: Tuple[_AnnotationScanType, ...] -) -> Type[_T]: - if hasattr(annotation, "copy_with"): - # List, Dict, etc. real generics - return annotation.copy_with(elements) # type: ignore - else: - # Python builtins list, dict, etc. - return annotation.__origin__[elements] # type: ignore - - -def eval_expression( - expression: str, - module_name: str, - *, - locals_: Optional[Mapping[str, Any]] = None, - in_class: Optional[Type[Any]] = None, -) -> Any: - try: - base_globals: Dict[str, Any] = sys.modules[module_name].__dict__ - except KeyError as ke: - raise NameError( - f"Module {module_name} isn't present in sys.modules; can't " - f"evaluate expression {expression}" - ) from ke - - try: - if in_class is not None: - cls_namespace = dict(in_class.__dict__) - cls_namespace.setdefault(in_class.__name__, in_class) - - # see #10899. We want the locals/globals to take precedence - # over the class namespace in this context, even though this - # is not the usual way variables would resolve. - cls_namespace.update(base_globals) - - annotation = eval(expression, cls_namespace, locals_) - else: - annotation = eval(expression, base_globals, locals_) - except Exception as err: - raise NameError( - f"Could not de-stringify annotation {expression!r}" - ) from err - else: - return annotation - - -def eval_name_only( - name: str, - module_name: str, - *, - locals_: Optional[Mapping[str, Any]] = None, -) -> Any: - if "." in name: - return eval_expression(name, module_name, locals_=locals_) - - try: - base_globals: Dict[str, Any] = sys.modules[module_name].__dict__ - except KeyError as ke: - raise NameError( - f"Module {module_name} isn't present in sys.modules; can't " - f"resolve name {name}" - ) from ke - - # name only, just look in globals. eval() works perfectly fine here, - # however we are seeking to have this be faster, as this occurs for - # every Mapper[] keyword, etc. depending on configuration - try: - return base_globals[name] - except KeyError as ke: - # check in builtins as well to handle `list`, `set` or `dict`, etc. - try: - return builtins.__dict__[name] - except KeyError: - pass - - raise NameError( - f"Could not locate name {name} in module {module_name}" - ) from ke - - -def resolve_name_to_real_class_name(name: str, module_name: str) -> str: - try: - obj = eval_name_only(name, module_name) - except NameError: - return name - else: - return getattr(obj, "__name__", name) - - -def de_stringify_union_elements( - cls: Type[Any], - annotation: ArgsTypeProcotol, - originating_module: str, - locals_: Mapping[str, Any], - *, - str_cleanup_fn: Optional[Callable[[str, str], str]] = None, -) -> Type[Any]: - return make_union_type( - *[ - de_stringify_annotation( - cls, - anno, - originating_module, - {}, - str_cleanup_fn=str_cleanup_fn, - ) - for anno in annotation.__args__ - ] - ) - - -def is_pep593(type_: Optional[_AnnotationScanType]) -> bool: - return type_ is not None and typing_get_origin(type_) is Annotated - - -def is_non_string_iterable(obj: Any) -> TypeGuard[Iterable[Any]]: - return isinstance(obj, collections_abc.Iterable) and not isinstance( - obj, (str, bytes) - ) - - -def is_literal(type_: _AnnotationScanType) -> bool: - return get_origin(type_) is Literal - - -def is_newtype(type_: Optional[_AnnotationScanType]) -> TypeGuard[NewType]: - return hasattr(type_, "__supertype__") - - # doesn't work in 3.8, 3.7 as it passes a closure, not an - # object instance - # return isinstance(type_, NewType) - - -def is_generic(type_: _AnnotationScanType) -> TypeGuard[GenericProtocol[Any]]: - return hasattr(type_, "__args__") and hasattr(type_, "__origin__") - - -def is_pep695(type_: _AnnotationScanType) -> TypeGuard[TypeAliasType]: - return isinstance(type_, TypeAliasType) - - -def flatten_newtype(type_: NewType) -> Type[Any]: - super_type = type_.__supertype__ - while is_newtype(super_type): - super_type = super_type.__supertype__ - return super_type - - -def is_fwd_ref( - type_: _AnnotationScanType, check_generic: bool = False -) -> TypeGuard[ForwardRef]: - if isinstance(type_, ForwardRef): - return True - elif check_generic and is_generic(type_): - return any(is_fwd_ref(arg, True) for arg in type_.__args__) - else: - return False - - -@overload -def de_optionalize_union_types(type_: str) -> str: ... - - -@overload -def de_optionalize_union_types(type_: Type[Any]) -> Type[Any]: ... - - -@overload -def de_optionalize_union_types( - type_: _AnnotationScanType, -) -> _AnnotationScanType: ... - - -def de_optionalize_union_types( - type_: _AnnotationScanType, -) -> _AnnotationScanType: - """Given a type, filter out ``Union`` types that include ``NoneType`` - to not include the ``NoneType``. - - """ - - if is_fwd_ref(type_): - return de_optionalize_fwd_ref_union_types(type_) - - elif is_optional(type_): - typ = set(type_.__args__) - - typ.discard(NoneType) - typ.discard(NoneFwd) - - return make_union_type(*typ) - - else: - return type_ - - -def de_optionalize_fwd_ref_union_types( - type_: ForwardRef, -) -> _AnnotationScanType: - """return the non-optional type for Optional[], Union[None, ...], x|None, - etc. without de-stringifying forward refs. - - unfortunately this seems to require lots of hardcoded heuristics - - """ - - annotation = type_.__forward_arg__ - - mm = re.match(r"^(.+?)\[(.+)\]$", annotation) - if mm: - if mm.group(1) == "Optional": - return ForwardRef(mm.group(2)) - elif mm.group(1) == "Union": - elements = re.split(r",\s*", mm.group(2)) - return make_union_type( - *[ForwardRef(elem) for elem in elements if elem != "None"] - ) - else: - return type_ - - pipe_tokens = re.split(r"\s*\|\s*", annotation) - if "None" in pipe_tokens: - return ForwardRef("|".join(p for p in pipe_tokens if p != "None")) - - return type_ - - -def make_union_type(*types: _AnnotationScanType) -> Type[Any]: - """Make a Union type. - - This is needed by :func:`.de_optionalize_union_types` which removes - ``NoneType`` from a ``Union``. - - """ - return cast(Any, Union).__getitem__(types) # type: ignore - - -def expand_unions( - type_: Type[Any], include_union: bool = False, discard_none: bool = False -) -> Tuple[Type[Any], ...]: - """Return a type as a tuple of individual types, expanding for - ``Union`` types.""" - - if is_union(type_): - typ = set(type_.__args__) - - if discard_none: - typ.discard(NoneType) - - if include_union: - return (type_,) + tuple(typ) # type: ignore - else: - return tuple(typ) # type: ignore - else: - return (type_,) - - -def is_optional(type_: Any) -> TypeGuard[ArgsTypeProcotol]: - return is_origin_of( - type_, - "Optional", - "Union", - "UnionType", - ) - - -def is_optional_union(type_: Any) -> bool: - return is_optional(type_) and NoneType in typing_get_args(type_) - - -def is_union(type_: Any) -> TypeGuard[ArgsTypeProcotol]: - return is_origin_of(type_, "Union") - - -def is_origin_of_cls( - type_: Any, class_obj: Union[Tuple[Type[Any], ...], Type[Any]] -) -> bool: - """return True if the given type has an __origin__ that shares a base - with the given class""" - - origin = typing_get_origin(type_) - if origin is None: - return False - - return isinstance(origin, type) and issubclass(origin, class_obj) - - -def is_origin_of( - type_: Any, *names: str, module: Optional[str] = None -) -> bool: - """return True if the given type has an __origin__ with the given name - and optional module.""" - - origin = typing_get_origin(type_) - if origin is None: - return False - - return _get_type_name(origin) in names and ( - module is None or origin.__module__.startswith(module) - ) - - -def _get_type_name(type_: Type[Any]) -> str: - if compat.py310: - return type_.__name__ - else: - typ_name = getattr(type_, "__name__", None) - if typ_name is None: - typ_name = getattr(type_, "_name", None) - - return typ_name # type: ignore - - -class DescriptorProto(Protocol): - def __get__(self, instance: object, owner: Any) -> Any: ... - - def __set__(self, instance: Any, value: Any) -> None: ... - - def __delete__(self, instance: Any) -> None: ... - - -_DESC = TypeVar("_DESC", bound=DescriptorProto) - - -class DescriptorReference(Generic[_DESC]): - """a descriptor that refers to a descriptor. - - used for cases where we need to have an instance variable referring to an - object that is itself a descriptor, which typically confuses typing tools - as they don't know when they should use ``__get__`` or not when referring - to the descriptor assignment as an instance variable. See - sqlalchemy.orm.interfaces.PropComparator.prop - - """ - - if TYPE_CHECKING: - - def __get__(self, instance: object, owner: Any) -> _DESC: ... - - def __set__(self, instance: Any, value: _DESC) -> None: ... - - def __delete__(self, instance: Any) -> None: ... - - -_DESC_co = TypeVar("_DESC_co", bound=DescriptorProto, covariant=True) - - -class RODescriptorReference(Generic[_DESC_co]): - """a descriptor that refers to a descriptor. - - same as :class:`.DescriptorReference` but is read-only, so that subclasses - can define a subtype as the generically contained element - - """ - - if TYPE_CHECKING: - - def __get__(self, instance: object, owner: Any) -> _DESC_co: ... - - def __set__(self, instance: Any, value: Any) -> NoReturn: ... - - def __delete__(self, instance: Any) -> NoReturn: ... - - -_FN = TypeVar("_FN", bound=Optional[Callable[..., Any]]) - - -class CallableReference(Generic[_FN]): - """a descriptor that refers to a callable. - - works around mypy's limitation of not allowing callables assigned - as instance variables - - - """ - - if TYPE_CHECKING: - - def __get__(self, instance: object, owner: Any) -> _FN: ... - - def __set__(self, instance: Any, value: _FN) -> None: ... - - def __delete__(self, instance: Any) -> None: ... - - -# $def ro_descriptor_reference(fn: Callable[]) -- cgit v1.2.3