[issue17973] '+=' on a list inside tuple both succeeds and raises an exception

[R. David Murray]

R. David Murray added the comment:

This gets reported periodically.  I wonder if it is time for a FAQ entry.  There doesn't seem to be one yet.

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nosy: +r.david.murray

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17973>
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