--- a/lib/python3.8/site-packages/pip/_internal/utils/deprecation.py	Mon Jul 27 03:47:31 2020 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,104 +0,0 @@
-"""
-A module that implements tooling to enable easy warnings about deprecations.
-"""
-
-# The following comment should be removed at some point in the future.
-# mypy: disallow-untyped-defs=False
-
-from __future__ import absolute_import
-
-import logging
-import warnings
-
-from pip._vendor.packaging.version import parse
-
-from pip import __version__ as current_version
-from pip._internal.utils.typing import MYPY_CHECK_RUNNING
-
-if MYPY_CHECK_RUNNING:
-    from typing import Any, Optional
-
-
-DEPRECATION_MSG_PREFIX = "DEPRECATION: "
-
-
-class PipDeprecationWarning(Warning):
-    pass
-
-
-_original_showwarning = None  # type: Any
-
-
-# Warnings <-> Logging Integration
-def _showwarning(message, category, filename, lineno, file=None, line=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():
-    # type: () -> 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, replacement, gone_in, issue=None):
-    # type: (str, Optional[str], Optional[str], Optional[int]) -> None
-    """Helper to deprecate existing functionality.
-
-    reason:
-        Textual reason shown to the user about why this functionality has
-        been deprecated.
-    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 errors if pip's current version is greater than or equal to
-        this.
-    issue:
-        Issue number on the tracker that would serve as a useful place for
-        users to find related discussion and provide feedback.
-
-    Always pass replacement, gone_in and issue as keyword arguments for clarity
-    at the call site.
-    """
-
-    # Construct a nice message.
-    #   This is eagerly formatted as we want it to get logged as if someone
-    #   typed this entire message out.
-    sentences = [
-        (reason, DEPRECATION_MSG_PREFIX + "{}"),
-        (gone_in, "pip {} will remove support for this functionality."),
-        (replacement, "A possible replacement is {}."),
-        (issue, (
-            "You can find discussion regarding this at "
-            "https://github.com/pypa/pip/issues/{}."
-        )),
-    ]
-    message = " ".join(
-        template.format(val) for val, template in sentences if val is not None
-    )
-
-    # Raise as an error if it has to be removed.
-    if gone_in is not None and parse(current_version) >= parse(gone_in):
-        raise PipDeprecationWarning(message)
-
-    warnings.warn(message, category=PipDeprecationWarning, stacklevel=2)