Serhiy Storchaka added the comment: Interning the __module__ string causes small performance hit:
$ ./python -m timeit -s "from itertools import chain" -- "chain.__module__; chain.__module__; chain.__module__; chain.__module__; chain.__module__; chain.__module__; chain.__module__; chain.__module__; chain.__module__; chain.__module__" Unpatched: 1.93 usec per loop Patched: 4.09 usec per loop This can be avoided if cache created string in type's __dict__. Following patch makes __module__ retrieving for non-heap types as fast as for heap types: Patched2: 0.871 usec per loop ---------- type: performance -> enhancement Added file: http://bugs.python.org/file41443/intern_and_cache___module__.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25856> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
