[issue20105] Codec exception chaining is losing traceback details

[Roundup Robot]

Roundup Robot added the comment:

New changeset b27352f87404 by Nick Coghlan in branch 'default':
Close #20105: set __traceback__ when chaining exceptions in C
http://hg.python.org/cpython/rev/b27352f87404

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nosy: +python-dev
resolution:  -> fixed
stage: test needed -> committed/rejected
status: open -> closed

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