[Python-Dev] Reference cycle on the module dict (globals()) (original) (raw)
Victor Stinner victor.stinner at gmail.com
Tue Jan 19 07:54:17 EST 2016
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Hi,
2016-01-19 11:39 GMT+01:00 Petr Viktorin <encukou at gmail.com>:
Did I miss something obvious, or is it a known issue of the garbage collector on modules? The default type flags are for objects that don't store references. Since you're creating a mutable container, you need to set PyTPFLAGSHAVEGC. See https://docs.python.org/3/c-api/gcsupport.html for all the details.
Ok, so I missed this important flag :-) Thanks!
I had to fight against the C API to fix all my bugs, but now it works well: a guard keeps a strong reference to the global namespace, but objects are still destroyed when the module is unloaded!
FYI I updated my PEP 510 patch to track guards with the garbage collector, and my fat project to fix bugs related to GC:
Victor
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