Rahul Kumaresan <kayrahul@gmail.com> added the comment: Although the documentation for 'typing.NoReturn' is made in: https://github.com/python/cpython/pull/7107/files The actual inclusion of the 'typing.NoReturn' was made through the following this PR: https://github.com/python/typing/pull/397 Also the change is registered in the changelog under Python 3.6.2 rc1 release as: ''' bpo-28556: Various updates to typing module: add typing.NoReturn type, use WrapperDescriptorType, minor bug-fixes. Original PRs by Jim Fasarakis-Hilliard and Ivan Levkivskyi. ''' So shouldn't the correct version here should be 3.6.2? ---------- _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue43978> _______________________________________