Issue #5472: Fixed distutils.test_util tear down

Lib/distutils/tests/test_util.py

@@ -53,6 +53,8 @@ class utilTestCase(unittest.TestCase):
         os.path.splitdrive = self.splitdrive
         if self.uname is not None:
             os.uname = self.uname
+        else:
+            del os.uname
 
     def _set_uname(self, uname):
         self._uname = uname

Misc/NEWS

@@ -171,6 +171,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #5472: Fixed distutils.test_util tear down. Original patch by
+  Tim Golden.
+
 - collections.deque() objects now have a read-only attribute called maxlen.
 
 - Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after