Remove SetuptoolsVersion and SetuptoolsLegacyVersion. Ref #296.

CHANGES.rst

+v39.0.0
+-------
+
+* #296: Removed long-deprecated support for iteration on
+  Version objects as returned by ``pkg_resources.parse_version``.
+  Removed the ``SetuptoolsVersion`` and
+  ``SetuptoolsLegacyVersion`` names as well. They should not
+  have been used, but if they were, replace with
+  ``Version`` and ``LegacyVersion`` from ``packaging.version``.
+
 v38.7.0
 -------
 

pkg_resources/__init__.py

@@ -114,118 +114,11 @@ class PEP440Warning(RuntimeWarning):
     """
 
 
-class _SetuptoolsVersionMixin(object):
-    def __hash__(self):
-        return super(_SetuptoolsVersionMixin, self).__hash__()
-
-    def __lt__(self, other):
-        if isinstance(other, tuple):
-            return tuple(self) < other
-        else:
-            return super(_SetuptoolsVersionMixin, self).__lt__(other)
-
-    def __le__(self, other):
-        if isinstance(other, tuple):
-            return tuple(self) <= other
-        else:
-            return super(_SetuptoolsVersionMixin, self).__le__(other)
-
-    def __eq__(self, other):
-        if isinstance(other, tuple):
-            return tuple(self) == other
-        else:
-            return super(_SetuptoolsVersionMixin, self).__eq__(other)
-
-    def __ge__(self, other):
-        if isinstance(other, tuple):
-            return tuple(self) >= other
-        else:
-            return super(_SetuptoolsVersionMixin, self).__ge__(other)
-
-    def __gt__(self, other):
-        if isinstance(other, tuple):
-            return tuple(self) > other
-        else:
-            return super(_SetuptoolsVersionMixin, self).__gt__(other)
-
-    def __ne__(self, other):
-        if isinstance(other, tuple):
-            return tuple(self) != other
-        else:
-            return super(_SetuptoolsVersionMixin, self).__ne__(other)
-
-    def __getitem__(self, key):
-        return tuple(self)[key]
-
-    def __iter__(self):
-        component_re = re.compile(r'(\d+ | [a-z]+ | \.| -)', re.VERBOSE)
-        replace = {
-            'pre': 'c',
-            'preview': 'c',
-            '-': 'final-',
-            'rc': 'c',
-            'dev': '@',
-        }.get
-
-        def _parse_version_parts(s):
-            for part in component_re.split(s):
-                part = replace(part, part)
-                if not part or part == '.':
-                    continue
-                if part[:1] in '0123456789':
-                    # pad for numeric comparison
-                    yield part.zfill(8)
-                else:
-                    yield '*' + part
-
-            # ensure that alpha/beta/candidate are before final
-            yield '*final'
-
-        def old_parse_version(s):
-            parts = []
-            for part in _parse_version_parts(s.lower()):
-                if part.startswith('*'):
-                    # remove '-' before a prerelease tag
-                    if part < '*final':
-                        while parts and parts[-1] == '*final-':
-                            parts.pop()
-                    # remove trailing zeros from each series of numeric parts
-                    while parts and parts[-1] == '00000000':
-                        parts.pop()
-                parts.append(part)
-            return tuple(parts)
-
-        # Warn for use of this function
-        warnings.warn(
-            "You have iterated over the result of "
-            "pkg_resources.parse_version. This is a legacy behavior which is "
-            "inconsistent with the new version class introduced in setuptools "
-            "8.0. In most cases, conversion to a tuple is unnecessary. For "
-            "comparison of versions, sort the Version instances directly. If "
-            "you have another use case requiring the tuple, please file a "
-            "bug with the setuptools project describing that need.",
-            RuntimeWarning,
-            stacklevel=1,
-        )
-
-        for part in old_parse_version(str(self)):
-            yield part
-
-
-class SetuptoolsVersion(_SetuptoolsVersionMixin, packaging.version.Version):
-    pass
-
-
-class SetuptoolsLegacyVersion(_SetuptoolsVersionMixin,
-                              packaging.version.LegacyVersion):
-    pass
-
-
 def parse_version(v):
     try:
-        return SetuptoolsVersion(v)
+        return packaging.version.Version(v)
     except packaging.version.InvalidVersion:
-        return SetuptoolsLegacyVersion(v)
+        return packaging.version.LegacyVersion(v)
 
 
 _state_vars = {}