[issue19772] str serialization of Message object may mutate the payload and CTE.

[R. David Murray]

R. David Murray added the comment:

I'm guessing the problem is that copy is a shallow copy, and message objects can be deeply nested.  Doing a deepcopy might work, but as things are currently, that could cost a lot of memory, so I don't want to do that.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19772>
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