STINNER Victor added the comment: int type of Python 2 uses an internal "free list" which has an unlimited size. If once you have 1 million different integers are the same time, the memory will never be released, even if the container storing all these integers is removed, because a reference is kept in the free list.
This is a known issue of Python 2, solved "indirectly" in Python 3, because "int" type of Python 3 does not use a free list. The long type of Python 2 does not use a free list neither. ---------- nosy: +haypo _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue19246> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com