[issue26617] Assertion failed in gc with __del__ and weakref

[JIahua Guo]

JIahua Guo added the comment:

Hi asvetlov, debug mode of python interpreter should be enabled to reproduce this bug, cause assertion is disabled in release mode.
(https://hg.python.org/cpython/file/104259/Modules/gcmodule.c#l365)

One environment that can reproduce this bug:

$ cat /etc/issue
Ubuntu 14.04.3 LTS \n \l

$ uname -r
3.13.0-32-generic

$ uname -m
x86_64

$ dpkg -s python3.4-dbg | grep Version
Version: 3.4.3-1ubuntu1~14.04.4

$ python3.4-dbg crash.py
python3.4-dbg: ../Modules/gcmodule.c:364: update_refs: Assertion `((gc)->gc.gc_refs >> (1)) != 0' failed.
Aborted

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<http://bugs.python.org/issue26617>
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