[issue39766] unittest's assertRaises removes locals from tracebacks

[daniel hahler]

daniel hahler <python-bugs at thequod.de> added the comment:

The test for issue9815 passes since bbd3cf8f1e (bpo-23890).

It seems like `traceback.clear_frames(tb)` should probably removed altogether?

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nosy: +vstinner

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39766>
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