Henry Chen <[email protected]> added the comment:
Hmm, the example works for me (Python 3.6.5):
>>> import pdb
>>> class FakeContainer:
... def __getitem__(self, key):
... raise KeyError(key)
...
>>> pdb.run("eval('1+1',{},FakeContainer())")
> <string>(1)<module>()
(Pdb) c
>>>
As for exec/eval accepting an incomplete mapping, that strikes me as a less
than thorough checking on the part of exec/eval, perhaps for performance
reasons(?)
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<https://bugs.python.org/issue34782>
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