[issue20766] reference leaks in pdb

[Jack Liu]

Jack Liu added the comment:

Will the issue be fixed in Python formal build?
I still meet the same issue with Python 3.5.1. It cost me a bit time to track down this issue.

I'm using pdb to debug a Python script, there are global variables in the script. Duo the leak of sigint_handler, calling gc.collect() doesn't release the global variables until calling PyOS_FiniInterrupts().

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nosy: +Jack Liu, draghuram, gregory.p.smith, isandler, r.david.murray
versions: +Python 3.5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20766>
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