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//opt/hc_python/lib/python3.12/site-packages/pip/_internal/utils/packaging.py

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from __future__ import annotations

import functools
import logging

from pip._vendor.packaging import specifiers, version
from pip._vendor.packaging.requirements import Requirement

logger = logging.getLogger(__name__)

@functools.lru_cache(maxsize=32)
def check_requires_python(
    requires_python: str | None, version_info: tuple[int, ...]
) -> bool:
    """
    Check if the given Python version matches a "Requires-Python" specifier.

:param version_info: A 3-tuple of ints representing a Python
        major-minor-micro version to check (e.g. `sys.version_info[:3]`).

:return: `True` if the given Python version satisfies the requirement.
        Otherwise, return `False`.

:raises InvalidSpecifier: If `requires_python` has an invalid format.
    """
    if requires_python is None:
        # The package provides no information
        return True
    requires_python_specifier = specifiers.SpecifierSet(requires_python)

python_version = version.parse(".".join(map(str, version_info)))
    return python_version in requires_python_specifier

@functools.lru_cache(maxsize=10000)
def get_requirement(req_string: str) -> Requirement:
    """Construct a packaging.Requirement object with caching"""
    # Parsing requirement strings is expensive, and is also expected to happen
    # with a low diversity of different arguments (at least relative the number
    # constructed). This method adds a cache to requirement object creation to
    # minimize repeated parsing of the same string to construct equivalent
    # Requirement objects.
    return Requirement(req_string)

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Name	Size	Perms	Modified	Actions
__pycache__ DIR	-	drwxr-xr-x	2026-06-11 06:30:21	Edit Download recursive recursive
appdirs.py	1.64 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
compat.py	2.46 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
compatibility_tags.py	6.47 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
datetime.py	868 B	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
deprecation.py	4.22 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
direct_url_helpers.py	3.28 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
egg_link.py	2.40 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
entrypoints.py	3.25 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
filesystem.py	6.65 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
filetypes.py	689 B	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
glibc.py	3.64 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
hashes.py	4.92 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
logging.py	13.10 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
misc.py	23.15 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
packaging.py	1.56 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
pylock.py	9.14 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
retry.py	1.43 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
subprocess.py	8.77 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
temp_dir.py	9.09 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
unpacking.py	13.27 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
urls.py	1.56 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
virtualenv.py	3.37 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
wheel.py	4.36 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
_jaraco_text.py	3.27 KB	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
_log.py	1015 B	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive
__init__.py	0 B	lrw-r--r--	2026-06-11 06:30:20	Edit Download recursive recursive

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