New submission from Vincent Pelletier <plr.vinc...@gmail.com>: When storing a ctype function pointer in a ctype structure field, a reference remains even when that field is overwritten with some values: - None - None cast into a function pointer But the reference is somehow removed when overwriting the field with a "real" function pointer (a lambda in attached test case).
This causes problem when the structure is a class property and function pointer is created out of a method of the same class: a circular reference is created, which is not garbage-collected. To run the attached test case, you need objgraph[1], and to uncomment one (or none) of the commented-out lines in "close" method. [1] http://mg.pov.lt/objgraph/ ---------- components: ctypes files: reproduce.py messages: 164534 nosy: vpelletier priority: normal severity: normal status: open title: ctype Structure keeps reference to function pointers type: behavior versions: Python 2.6, Python 2.7, Python 3.2 Added file: http://bugs.python.org/file26234/reproduce.py _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue15240> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
