--- a/lib/python3.8/site-packages/pip/_internal/utils/models.py	Mon Jul 27 03:47:31 2020 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,42 +0,0 @@
-"""Utilities for defining models
-"""
-# The following comment should be removed at some point in the future.
-# mypy: disallow-untyped-defs=False
-
-import operator
-
-
-class KeyBasedCompareMixin(object):
-    """Provides comparison capabilities that is based on a key
-    """
-
-    def __init__(self, key, defining_class):
-        self._compare_key = key
-        self._defining_class = defining_class
-
-    def __hash__(self):
-        return hash(self._compare_key)
-
-    def __lt__(self, other):
-        return self._compare(other, operator.__lt__)
-
-    def __le__(self, other):
-        return self._compare(other, operator.__le__)
-
-    def __gt__(self, other):
-        return self._compare(other, operator.__gt__)
-
-    def __ge__(self, other):
-        return self._compare(other, operator.__ge__)
-
-    def __eq__(self, other):
-        return self._compare(other, operator.__eq__)
-
-    def __ne__(self, other):
-        return self._compare(other, operator.__ne__)
-
-    def _compare(self, other, method):
-        if not isinstance(other, self._defining_class):
-            return NotImplemented
-
-        return method(self._compare_key, other._compare_key)