On 64-bit platforms running test_struct after test_tarfile would fail
since the deprecation warning wouldn't be raised.
diff --git a/Lib/test/test_struct.py b/Lib/test/test_struct.py
index da7f40c..a6c0b49 100644
--- a/Lib/test/test_struct.py
+++ b/Lib/test/test_struct.py
@@ -53,6 +53,12 @@
# The `warnings` module doesn't have an advertised way to restore
# its filter list. Cheat.
save_warnings_filters = warnings.filters[:]
+ # Grrr, we need this function to warn every time. Without removing
+ # the warningregistry, running test_tarfile then test_struct would fail
+ # on 64-bit platforms.
+ globals = func.func_globals
+ if '__warningregistry__' in globals:
+ del globals['__warningregistry__']
warnings.filterwarnings("error", r"""^struct.*""", DeprecationWarning)
warnings.filterwarnings("error", r""".*format requires.*""",
DeprecationWarning)