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Files and Folders in: //opt/alt//python310/lib//python3.10//site-packages/pip/_internal/utils

NameTypeSizeLast ModifiedActions
__pycache__ Directory - -
__init__.py File 0 bytes November 13 2023 21:53:10.
_log.py File 1015 bytes November 13 2023 21:53:10.
appdirs.py File 1665 bytes November 13 2023 21:53:10.
compat.py File 1884 bytes November 13 2023 21:53:10.
compatibility_tags.py File 5377 bytes November 13 2023 21:53:10.
datetime.py File 242 bytes November 13 2023 21:53:10.
deprecation.py File 3627 bytes November 13 2023 21:53:10.
direct_url_helpers.py File 3206 bytes November 13 2023 21:53:10.
distutils_args.py File 1249 bytes November 13 2023 21:53:10.
egg_link.py File 2203 bytes November 13 2023 21:53:10.
encoding.py File 1169 bytes November 13 2023 21:53:10.
entrypoints.py File 1130 bytes November 13 2023 21:53:10.
filesystem.py File 5893 bytes November 13 2023 21:53:10.
filetypes.py File 716 bytes November 13 2023 21:53:10.
glibc.py File 3110 bytes November 13 2023 21:53:10.
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inject_securetransport.py File 795 bytes November 13 2023 21:53:10.
logging.py File 11532 bytes November 13 2023 21:53:10.
misc.py File 20778 bytes November 13 2023 21:53:10.
models.py File 1193 bytes November 13 2023 21:53:10.
packaging.py File 2952 bytes November 13 2023 21:53:10.
parallel.py File 3196 bytes November 13 2023 21:53:10.
pkg_resources.py File 987 bytes November 13 2023 21:53:10.
setuptools_build.py File 4697 bytes November 13 2023 21:53:10.
subprocess.py File 10058 bytes November 13 2023 21:53:10.
temp_dir.py File 7662 bytes November 13 2023 21:53:10.
unpacking.py File 8906 bytes November 13 2023 21:53:10.
urls.py File 1759 bytes November 13 2023 21:53:10.
virtualenv.py File 3459 bytes November 13 2023 21:53:10.
wheel.py File 6163 bytes November 13 2023 21:53:10.

Reading File: //opt/alt//python310/lib//python3.10//site-packages/pip/_internal/utils/egg_link.py

# The following comment should be removed at some point in the future.
# mypy: strict-optional=False

import os
import re
import sys
from typing import Optional

from pip._internal.locations import site_packages, user_site
from pip._internal.utils.virtualenv import (
    running_under_virtualenv,
    virtualenv_no_global,
)

__all__ = [
    "egg_link_path_from_sys_path",
    "egg_link_path_from_location",
]


def _egg_link_name(raw_name: str) -> str:
    """
    Convert a Name metadata value to a .egg-link name, by applying
    the same substitution as pkg_resources's safe_name function.
    Note: we cannot use canonicalize_name because it has a different logic.
    """
    return re.sub("[^A-Za-z0-9.]+", "-", raw_name) + ".egg-link"


def egg_link_path_from_sys_path(raw_name: str) -> Optional[str]:
    """
    Look for a .egg-link file for project name, by walking sys.path.
    """
    egg_link_name = _egg_link_name(raw_name)
    for path_item in sys.path:
        egg_link = os.path.join(path_item, egg_link_name)
        if os.path.isfile(egg_link):
            return egg_link
    return None


def egg_link_path_from_location(raw_name: str) -> Optional[str]:
    """
    Return the path for the .egg-link file if it exists, otherwise, None.

    There's 3 scenarios:
    1) not in a virtualenv
       try to find in site.USER_SITE, then site_packages
    2) in a no-global virtualenv
       try to find in site_packages
    3) in a yes-global virtualenv
       try to find in site_packages, then site.USER_SITE
       (don't look in global location)

    For #1 and #3, there could be odd cases, where there's an egg-link in 2
    locations.

    This method will just return the first one found.
    """
    sites = []
    if running_under_virtualenv():
        sites.append(site_packages)
        if not virtualenv_no_global() and user_site:
            sites.append(user_site)
    else:
        if user_site:
            sites.append(user_site)
        sites.append(site_packages)

    egg_link_name = _egg_link_name(raw_name)
    for site in sites:
        egglink = os.path.join(site, egg_link_name)
        if os.path.isfile(egglink):
            return egglink
    return None

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