On 01/03/17 02:56, 语言破碎处 wrote:
I'm bited once: >>> '' in {} == False False >>> ('' in {}) == False True# '' in {} == False ==>> ('' in {}) and ({} == False) ==>> False! I think only compare operations should be chained.
I think comparing against False (or True) is bad idea. I would certainly reject any code doing it that came past me for review. Use "not" instead.
-- Rhodri James *-* Kynesim Ltd _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
