[Python-Dev] Reference cycles in Exception.traceback (original) (raw)

Victor Stinner victor.stinner at gmail.com
Thu Mar 6 16:19:14 CET 2014


2014-03-06 14:42 GMT+01:00 Antoine Pitrou <solipsis at pitrou.net>:

Le 05/03/2014 23:53, Nick Coghlan a écrit :

traceback wouldn't change [...] Uh, really? If you want to suppress all reference cycles, you have to remove traceback. The problem is to make computation of the traceback summary lightweight enough that it doesn't degrade performance in the common case where you don't have to print the traceback later.

By the way, here is my test script to try to create a lightweight traceback object without references to locals: https://bitbucket.org/haypo/misc/src/tip/python/suppress_locals.py

It works if there is no chained exception.

The problem is to build something working with the traceback module. I should maybe write my own formatting function reusing some traceback functions.

Victor



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