diff options
Diffstat (limited to 'venv/lib/python3.11/site-packages/dateutil/tz/_factories.py')
-rw-r--r-- | venv/lib/python3.11/site-packages/dateutil/tz/_factories.py | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/venv/lib/python3.11/site-packages/dateutil/tz/_factories.py b/venv/lib/python3.11/site-packages/dateutil/tz/_factories.py deleted file mode 100644 index f8a6589..0000000 --- a/venv/lib/python3.11/site-packages/dateutil/tz/_factories.py +++ /dev/null @@ -1,80 +0,0 @@ -from datetime import timedelta -import weakref -from collections import OrderedDict - -from six.moves import _thread - - -class _TzSingleton(type): - def __init__(cls, *args, **kwargs): - cls.__instance = None - super(_TzSingleton, cls).__init__(*args, **kwargs) - - def __call__(cls): - if cls.__instance is None: - cls.__instance = super(_TzSingleton, cls).__call__() - return cls.__instance - - -class _TzFactory(type): - def instance(cls, *args, **kwargs): - """Alternate constructor that returns a fresh instance""" - return type.__call__(cls, *args, **kwargs) - - -class _TzOffsetFactory(_TzFactory): - def __init__(cls, *args, **kwargs): - cls.__instances = weakref.WeakValueDictionary() - cls.__strong_cache = OrderedDict() - cls.__strong_cache_size = 8 - - cls._cache_lock = _thread.allocate_lock() - - def __call__(cls, name, offset): - if isinstance(offset, timedelta): - key = (name, offset.total_seconds()) - else: - key = (name, offset) - - instance = cls.__instances.get(key, None) - if instance is None: - instance = cls.__instances.setdefault(key, - cls.instance(name, offset)) - - # This lock may not be necessary in Python 3. See GH issue #901 - with cls._cache_lock: - cls.__strong_cache[key] = cls.__strong_cache.pop(key, instance) - - # Remove an item if the strong cache is overpopulated - if len(cls.__strong_cache) > cls.__strong_cache_size: - cls.__strong_cache.popitem(last=False) - - return instance - - -class _TzStrFactory(_TzFactory): - def __init__(cls, *args, **kwargs): - cls.__instances = weakref.WeakValueDictionary() - cls.__strong_cache = OrderedDict() - cls.__strong_cache_size = 8 - - cls.__cache_lock = _thread.allocate_lock() - - def __call__(cls, s, posix_offset=False): - key = (s, posix_offset) - instance = cls.__instances.get(key, None) - - if instance is None: - instance = cls.__instances.setdefault(key, - cls.instance(s, posix_offset)) - - # This lock may not be necessary in Python 3. See GH issue #901 - with cls.__cache_lock: - cls.__strong_cache[key] = cls.__strong_cache.pop(key, instance) - - # Remove an item if the strong cache is overpopulated - if len(cls.__strong_cache) > cls.__strong_cache_size: - cls.__strong_cache.popitem(last=False) - - return instance - |