Marco Sulla wrote at 2021-12-18 14:10 +0100: >Ok, I created the script: > >https://github.com/Marco-Sulla/python-frozendict/blob/master/test/debug.py > >The problem is it does _not_ crash, while a get a segfault using >pytest with python 3.9 on MacOS 10.15 > >Maybe it's because I'm using eval / exec in the script?
Segfaults can result from C stack overflow which in turn can be caused in special cases by too deeply nested function calls (usually, Python's "maximal recursion depth exceeded" prevents this before a C stack overflow). Otherwise, whatever you do in Python (this includes "eval/exec") should not cause a segfault. The cause for it likely comes from a memory management bug in some C implemented part of your application. Note that memory management bugs may not show deterministic behavior. Minor changes (such as "with/without -v") can significantly change the outcome. -- https://mail.python.org/mailman/listinfo/python-list
