summaryrefslogtreecommitdiff
path: root/venv/lib/python3.11/site-packages/pip/_internal/utils/virtualenv.py
diff options
context:
space:
mode:
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.py104
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