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📄 _log.py	1015 bytes	03/03/2025 08:48:30 AM	rw-r--r--
📄 appdirs.py	1.63 KB	03/03/2025 08:48:29 AM	rw-r--r--
📄 compat.py	1.84 KB	03/03/2025 08:48:29 AM	rw-r--r--
📄 compatibility_tags.py	5.25 KB	03/03/2025 08:48:29 AM	rw-r--r--
📄 datetime.py	242 bytes	03/03/2025 08:48:29 AM	rw-r--r--
📄 deprecation.py	3.54 KB	03/03/2025 08:48:29 AM	rw-r--r--
📄 direct_url_helpers.py	3.13 KB	03/03/2025 08:48:29 AM	rw-r--r--
📄 distutils_args.py	1.22 KB	03/03/2025 08:48:29 AM	rw-r--r--
📄 egg_link.py	2.15 KB	03/03/2025 08:48:29 AM	rw-r--r--
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📄 filesystem.py	5.75 KB	03/03/2025 08:48:29 AM	rw-r--r--
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📄 hashes.py	4.7 KB	03/03/2025 08:48:29 AM	rw-r--r--
📄 inject_securetransport.py	795 bytes	03/03/2025 08:48:29 AM	rw-r--r--
📄 logging.py	11.26 KB	03/03/2025 08:48:29 AM	rw-r--r--
📄 misc.py	19.95 KB	03/03/2025 08:48:29 AM	rw-r--r--
📄 models.py	1.17 KB	03/03/2025 08:48:29 AM	rw-r--r--
📄 packaging.py	2.88 KB	03/03/2025 08:48:30 AM	rw-r--r--
📄 parallel.py	3.12 KB	03/03/2025 08:48:30 AM	rw-r--r--
📄 pkg_resources.py	987 bytes	03/03/2025 08:48:30 AM	rw-r--r--
📄 setuptools_build.py	4.59 KB	03/03/2025 08:48:30 AM	rw-r--r--
📄 subprocess.py	9.82 KB	03/03/2025 08:48:30 AM	rw-r--r--
📄 temp_dir.py	7.48 KB	03/03/2025 08:48:30 AM	rw-r--r--
📄 unpacking.py	8.7 KB	03/03/2025 08:48:30 AM	rw-r--r--
📄 urls.py	1.72 KB	03/03/2025 08:48:30 AM	rw-r--r--
📄 virtualenv.py	3.38 KB	03/03/2025 08:48:30 AM	rw-r--r--
📄 wheel.py	6.02 KB	03/03/2025 08:48:30 AM	rw-r--r--

Editing: deprecation.py

"""
A module that implements tooling to enable easy warnings about deprecations.
"""

import logging
import warnings
from typing import Any, Optional, TextIO, Type, Union

from pip._vendor.packaging.version import parse

from pip import __version__ as current_version  # NOTE: tests patch this name.

DEPRECATION_MSG_PREFIX = "DEPRECATION: "

class PipDeprecationWarning(Warning):
    pass

_original_showwarning: Any = None

# Warnings <-> Logging Integration
def _showwarning(
    message: Union[Warning, str],
    category: Type[Warning],
    filename: str,
    lineno: int,
    file: Optional[TextIO] = None,
    line: Optional[str] = None,
) -> None:
    if file is not None:
        if _original_showwarning is not None:
            _original_showwarning(message, category, filename, lineno, file, line)
    elif issubclass(category, PipDeprecationWarning):
        # We use a specially named logger which will handle all of the
        # deprecation messages for pip.
        logger = logging.getLogger("pip._internal.deprecations")
        logger.warning(message)
    else:
        _original_showwarning(message, category, filename, lineno, file, line)

def install_warning_logger() -> None:
    # Enable our Deprecation Warnings
    warnings.simplefilter("default", PipDeprecationWarning, append=True)

global _original_showwarning

if _original_showwarning is None:
        _original_showwarning = warnings.showwarning
        warnings.showwarning = _showwarning

def deprecated(
    *,
    reason: str,
    replacement: Optional[str],
    gone_in: Optional[str],
    feature_flag: Optional[str] = None,
    issue: Optional[int] = None,
) -> None:
    """Helper to deprecate existing functionality.

reason:
        Textual reason shown to the user about why this functionality has
        been deprecated. Should be a complete sentence.
    replacement:
        Textual suggestion shown to the user about what alternative
        functionality they can use.
    gone_in:
        The version of pip does this functionality should get removed in.
        Raises an error if pip's current version is greater than or equal to
        this.
    feature_flag:
        Command-line flag of the form --use-feature={feature_flag} for testing
        upcoming functionality.
    issue:
        Issue number on the tracker that would serve as a useful place for
        users to find related discussion and provide feedback.
    """

# Determine whether or not the feature is already gone in this version.
    is_gone = gone_in is not None and parse(current_version) >= parse(gone_in)

message_parts = [
        (reason, f"{DEPRECATION_MSG_PREFIX}{{}}"),
        (
            gone_in,
            "pip {} will enforce this behaviour change."
            if not is_gone
            else "Since pip {}, this is no longer supported.",
        ),
        (
            replacement,
            "A possible replacement is {}.",
        ),
        (
            feature_flag,
            "You can use the flag --use-feature={} to test the upcoming behaviour."
            if not is_gone
            else None,
        ),
        (
            issue,
            "Discussion can be found at https://github.com/pypa/pip/issues/{}",
        ),
    ]

message = " ".join(
        format_str.format(value)
        for value, format_str in message_parts
        if format_str is not None and value is not None
    )

# Raise as an error if this behaviour is deprecated.
    if is_gone:
        raise PipDeprecationWarning(message)

warnings.warn(message, category=PipDeprecationWarning, stacklevel=2)