diff options
Diffstat (limited to 'Lib/unittest/case.py')
| -rw-r--r-- | Lib/unittest/case.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/unittest/case.py b/Lib/unittest/case.py index e5734b6..3223c0b 100644 --- a/Lib/unittest/case.py +++ b/Lib/unittest/case.py @@ -251,7 +251,7 @@ class _AssertWarnsContext(_AssertRaisesBaseContext): def __enter__(self): # The __warningregistry__'s need to be in a pristine state for tests # to work properly. - for v in sys.modules.values(): + for v in list(sys.modules.values()): if getattr(v, '__warningregistry__', None): v.__warningregistry__ = {} self.warnings_manager = warnings.catch_warnings(record=True) |