[issue12309] os.environ was modified by test_packaging

[STINNER Victor]

STINNER Victor <victor.stinner at haypocalc.com> added the comment:

A patch fixing os.environ warning for test_command_build_ext.py:

diff --git a/Lib/packaging/tests/test_command_build_ext.py b/Lib/packaging/tests/test_command_build_ext.py
--- a/Lib/packaging/tests/test_command_build_ext.py
+++ b/Lib/packaging/tests/test_command_build_ext.py
@@ -20,7 +20,10 @@ def _get_source_filename():
 
 class BuildExtTestCase(support.TempdirManager,
                        support.LoggingCatcher,
+                       support.EnvironRestorer,
                        unittest.TestCase):
+    restore_environ = ['LIB', 'INCLUDE', 'PATH']
+
     def setUp(self):
         # Create a simple test environment
         # Note that we're making changes to sys.path

It is not enough.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12309>
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