Serhiy Storchaka added the comment: What about zipimport? It doesn't use __pycache__ directories, but just try to read *.pyc file, then *.py file.
The launcher on Windows also check magic number (it contains a mapping from magic numbers to Python versions). ---------- nosy: +serhiy.storchaka _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26042> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com