Łukasz Langa <lukasz@langa.pl> added the comment: New changeset 60ce8f0be6354ad565393ab449d8de5d713f35bc by Christian Heimes in branch 'master': bpo-36384: Leading zeros in IPv4 addresses are no longer tolerated (GH-25099) https://github.com/python/cpython/commit/60ce8f0be6354ad565393ab449d8de5d713... ---------- _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue36384> _______________________________________