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Diffstat (limited to 'Lib/copy_reg.py')
| -rw-r--r-- | Lib/copy_reg.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Lib/copy_reg.py b/Lib/copy_reg.py index 92cbd53..8a3550a 100644 --- a/Lib/copy_reg.py +++ b/Lib/copy_reg.py @@ -53,6 +53,8 @@ def _reduce(self): if base is object: state = None else: + if base is self.__class__: + raise TypeError, "can't pickle %s objects" % base.__name__ state = base(self) args = (self.__class__, base, state) try: |