Yury Selivanov added the comment: >> PyDict_Copy creates a new empty dict object and then inserts key/values into >> it one by one.
> Why not creating a "preallocated" dict in that case? _PyDict_NewPresized() I don't think it's related to the proposed patch. Please take a look at the PR. `_PyDict_NewPresized` and inserting entries one by one will not be faster than a `memcpy`. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue31179> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com