From 0e261af798199a652633e1aa38523d3d3a828f61 Mon Sep 17 00:00:00 2001
From: Vinay Sajip <vinay_sajip@yahoo.co.uk>
Date: Mon, 11 Dec 2023 08:57:02 +0000
Subject: [PATCH] Use legacy version implementation for Python itself.

---
 CHANGES.rst           |  5 +++++
 distlib/markers.py    | 10 +++++-----
 tests/test_markers.py |  7 +++----
 3 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/CHANGES.rst b/CHANGES.rst
index 7746985..27d1970 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -6,6 +6,11 @@ Change log for ``distlib``
 
 Released: Not yet.
 
+- markers
+
+    -   Fix #209: use legacy version implementation for Python versions.
+
+
 0.3.7
 ~~~~~
 
diff --git a/distlib/markers.py b/distlib/markers.py
index c70400c..7ebe472 100644
--- a/distlib/markers.py
+++ b/distlib/markers.py
@@ -19,7 +19,7 @@
 
 from .compat import string_types
 from .util import in_venv, parse_marker
-from .version import NormalizedVersion as NV
+from .version import LegacyVersion as LV
 
 __all__ = ['interpret']
 
@@ -35,7 +35,7 @@ def _is_literal(o):
     return o[0] in '\'"'
 
 def _get_versions(s):
-    return {NV(m.groups()[0]) for m in _VERSION_PATTERN.finditer(s)}
+    return {LV(m.groups()[0]) for m in _VERSION_PATTERN.finditer(s)}
 
 class Evaluator(object):
     """
@@ -83,10 +83,10 @@ def evaluate(self, expr, context):
             rhs = self.evaluate(erhs, context)
             if ((_is_version_marker(elhs) or _is_version_marker(erhs)) and
                 op in ('<', '<=', '>', '>=', '===', '==', '!=', '~=')):
-                lhs = NV(lhs)
-                rhs = NV(rhs)
+                lhs = LV(lhs)
+                rhs = LV(rhs)
             elif _is_version_marker(elhs) and op in ('in', 'not in'):
-                lhs = NV(lhs)
+                lhs = LV(lhs)
                 rhs = _get_versions(rhs)
             result = self.operations[op](lhs, rhs)
         return result
diff --git a/tests/test_markers.py b/tests/test_markers.py
index 8798c9e..93c047f 100644
--- a/tests/test_markers.py
+++ b/tests/test_markers.py
@@ -26,10 +26,9 @@ def test_interpret(self):
         platform_python_implementation = python_implementation()
 
         self.assertTrue(interpret("sys_platform == '%s'" % sys_platform))
-        if sys.version_info[3] == 'final':
-            self.assertTrue(interpret(
-                "sys_platform == '%s' and python_full_version == '%s'" %
-                (sys_platform, version)))
+        self.assertTrue(interpret(
+            "sys_platform == '%s' and python_full_version == '%s'" %
+            (sys_platform, version)))
         self.assertTrue(interpret("'%s' == sys_platform" % sys_platform))
         self.assertTrue(interpret('os_name == "%s"' % os_name))
         self.assertTrue(interpret(