diff options
Diffstat (limited to 'venv/lib/python3.11/site-packages/pip/_internal/utils/virtualenv.py')
-rw-r--r-- | venv/lib/python3.11/site-packages/pip/_internal/utils/virtualenv.py | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/venv/lib/python3.11/site-packages/pip/_internal/utils/virtualenv.py b/venv/lib/python3.11/site-packages/pip/_internal/utils/virtualenv.py deleted file mode 100644 index 882e36f..0000000 --- a/venv/lib/python3.11/site-packages/pip/_internal/utils/virtualenv.py +++ /dev/null @@ -1,104 +0,0 @@ -import logging -import os -import re -import site -import sys -from typing import List, Optional - -logger = logging.getLogger(__name__) -_INCLUDE_SYSTEM_SITE_PACKAGES_REGEX = re.compile( - r"include-system-site-packages\s*=\s*(?P<value>true|false)" -) - - -def _running_under_venv() -> bool: - """Checks if sys.base_prefix and sys.prefix match. - - This handles PEP 405 compliant virtual environments. - """ - return sys.prefix != getattr(sys, "base_prefix", sys.prefix) - - -def _running_under_legacy_virtualenv() -> bool: - """Checks if sys.real_prefix is set. - - This handles virtual environments created with pypa's virtualenv. - """ - # pypa/virtualenv case - return hasattr(sys, "real_prefix") - - -def running_under_virtualenv() -> bool: - """True if we're running inside a virtual environment, False otherwise.""" - return _running_under_venv() or _running_under_legacy_virtualenv() - - -def _get_pyvenv_cfg_lines() -> Optional[List[str]]: - """Reads {sys.prefix}/pyvenv.cfg and returns its contents as list of lines - - Returns None, if it could not read/access the file. - """ - pyvenv_cfg_file = os.path.join(sys.prefix, "pyvenv.cfg") - try: - # Although PEP 405 does not specify, the built-in venv module always - # writes with UTF-8. (pypa/pip#8717) - with open(pyvenv_cfg_file, encoding="utf-8") as f: - return f.read().splitlines() # avoids trailing newlines - except OSError: - return None - - -def _no_global_under_venv() -> bool: - """Check `{sys.prefix}/pyvenv.cfg` for system site-packages inclusion - - PEP 405 specifies that when system site-packages are not supposed to be - visible from a virtual environment, `pyvenv.cfg` must contain the following - line: - - include-system-site-packages = false - - Additionally, log a warning if accessing the file fails. - """ - cfg_lines = _get_pyvenv_cfg_lines() - if cfg_lines is None: - # We're not in a "sane" venv, so assume there is no system - # site-packages access (since that's PEP 405's default state). - logger.warning( - "Could not access 'pyvenv.cfg' despite a virtual environment " - "being active. Assuming global site-packages is not accessible " - "in this environment." - ) - return True - - for line in cfg_lines: - match = _INCLUDE_SYSTEM_SITE_PACKAGES_REGEX.match(line) - if match is not None and match.group("value") == "false": - return True - return False - - -def _no_global_under_legacy_virtualenv() -> bool: - """Check if "no-global-site-packages.txt" exists beside site.py - - This mirrors logic in pypa/virtualenv for determining whether system - site-packages are visible in the virtual environment. - """ - site_mod_dir = os.path.dirname(os.path.abspath(site.__file__)) - no_global_site_packages_file = os.path.join( - site_mod_dir, - "no-global-site-packages.txt", - ) - return os.path.exists(no_global_site_packages_file) - - -def virtualenv_no_global() -> bool: - """Returns a boolean, whether running in venv with no system site-packages.""" - # PEP 405 compliance needs to be checked first since virtualenv >=20 would - # return True for both checks, but is only able to use the PEP 405 config. - if _running_under_venv(): - return _no_global_under_venv() - - if _running_under_legacy_virtualenv(): - return _no_global_under_legacy_virtualenv() - - return False |