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File Name : target_python.py

import sys
from typing import List, Optional, Set, Tuple

from pip._vendor.packaging.tags import Tag

from pip._internal.utils.compatibility_tags import get_supported, version_info_to_nodot
from pip._internal.utils.misc import normalize_version_info

class TargetPython:
    """
    Encapsulates the properties of a Python interpreter one is targeting
    for a package install, download, etc.
    """

__slots__ = [
        "_given_py_version_info",
        "abis",
        "implementation",
        "platforms",
        "py_version",
        "py_version_info",
        "_valid_tags",
        "_valid_tags_set",
    ]

def __init__(
        self,
        platforms: Optional[List[str]] = None,
        py_version_info: Optional[Tuple[int, ...]] = None,
        abis: Optional[List[str]] = None,
        implementation: Optional[str] = None,
    ) -> None:
        """
        :param platforms: A list of strings or None. If None, searches for
            packages that are supported by the current system. Otherwise, will
            find packages that can be built on the platforms passed in. These
            packages will only be downloaded for distribution: they will
            not be built locally.
        :param py_version_info: An optional tuple of ints representing the
            Python version information to use (e.g. `sys.version_info[:3]`).
            This can have length 1, 2, or 3 when provided.
        :param abis: A list of strings or None. This is passed to
            compatibility_tags.py's get_supported() function as is.
        :param implementation: A string or None. This is passed to
            compatibility_tags.py's get_supported() function as is.
        """
        # Store the given py_version_info for when we call get_supported().
        self._given_py_version_info = py_version_info

if py_version_info is None:
            py_version_info = sys.version_info[:3]
        else:
            py_version_info = normalize_version_info(py_version_info)

py_version = ".".join(map(str, py_version_info[:2]))

self.abis = abis
        self.implementation = implementation
        self.platforms = platforms
        self.py_version = py_version
        self.py_version_info = py_version_info

# This is used to cache the return value of get_(un)sorted_tags.
        self._valid_tags: Optional[List[Tag]] = None
        self._valid_tags_set: Optional[Set[Tag]] = None

def format_given(self) -> str:
        """
        Format the given, non-None attributes for display.
        """
        display_version = None
        if self._given_py_version_info is not None:
            display_version = ".".join(
                str(part) for part in self._given_py_version_info
            )

key_values = [
            ("platforms", self.platforms),
            ("version_info", display_version),
            ("abis", self.abis),
            ("implementation", self.implementation),
        ]
        return " ".join(
            f"{key}={value!r}" for key, value in key_values if value is not None
        )

def get_sorted_tags(self) -> List[Tag]:
        """
        Return the supported PEP 425 tags to check wheel candidates against.

The tags are returned in order of preference (most preferred first).
        """
        if self._valid_tags is None:
            # Pass versions=None if no py_version_info was given since
            # versions=None uses special default logic.
            py_version_info = self._given_py_version_info
            if py_version_info is None:
                version = None
            else:
                version = version_info_to_nodot(py_version_info)

tags = get_supported(
                version=version,
                platforms=self.platforms,
                abis=self.abis,
                impl=self.implementation,
            )
            self._valid_tags = tags

return self._valid_tags

def get_unsorted_tags(self) -> Set[Tag]:
        """Exactly the same as get_sorted_tags, but returns a set.

This is important for performance.
        """
        if self._valid_tags_set is None:
            self._valid_tags_set = set(self.get_sorted_tags())

return self._valid_tags_set

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2025-10-06 05:47:37
..	dir	-	root/root	0755	2025-10-06 05:47:37
__pycache__	dir	-	root/root	0755	2025-10-06 05:47:40
__init__.py	text/plain	63 B	root/root	0644	2024-01-01 12:00:00
candidate.py	text/x-python	753 B	root/root	0644	2024-01-01 12:00:00
direct_url.py	text/plain	6.42 KB	root/root	0644	2024-01-01 12:00:00
format_control.py	text/x-python	2.43 KB	root/root	0644	2024-01-01 12:00:00
index.py	text/x-python	1.01 KB	root/root	0644	2024-01-01 12:00:00
installation_report.py	text/x-python	2.75 KB	root/root	0644	2024-01-01 12:00:00
link.py	text/x-python	20.54 KB	root/root	0644	2024-01-01 12:00:00
scheme.py	text/plain	575 B	root/root	0644	2024-01-01 12:00:00
search_scope.py	text/x-python	4.42 KB	root/root	0644	2024-01-01 12:00:00
selection_prefs.py	text/x-python	1.97 KB	root/root	0644	2024-01-01 12:00:00
target_python.py	text/x-python	4.17 KB	root/root	0644	2024-01-01 12:00:00
wheel.py	text/plain	4.43 KB	root/root	0644	2024-01-01 12:00:00