Recently Barry shown an example: assert len(subdirs := list(path.iterdir())) == 0, subdirsIt looks awful to me. It looks even worse than using asserts for validating the user input. The assert has a side effect, and it depends on the interpreter option (-O). Even if subdirs is not used outside of the assert *now*, it is easy to introduce an error later, and it is hard to notice it if tests are not ran with the -O option regularly. Does PEP 572 encourages writing such code, discourages this, or completely forbids?
_______________________________________________ Python-Dev mailing list [email protected] https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com