Mark Shannon <m...@hotpy.org> added the comment:
Have you observed any slowdown or incorrect behaviour? The 3.8 bytecode looks incorrect to me. The C-API documentation doesn't prohibit callables from mutating the dictionary they receive. Unless a copy is made, then a callee could mutate `var`. https://docs.python.org/3/c-api/call.html ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue42033> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com