[issue23902] let exception react to being raised or the setting of magic properties (like __cause__) within Python

[Travis Everett]

Travis Everett added the comment:

I attempted to intercept the set with both a property setter and __setattr__ with no luck.

I agree the use-case feels pretty specialized (at least to me). I'm not familiar with Python's source, but as best as I can tell these magic properties get set in the C source in such a way that the changes can't be observed through the typical Python interfaces.

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<http://bugs.python.org/issue23902>
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