On Wed, 01 Aug 2018 22:14:54 +0300, Serhiy Storchaka wrote: > 01.08.18 21:03, Chris Angelico пише: >> And in any code that does not and cannot run on Python 2, the warning >> about bytes and text comparing unequal is nothing more than a false >> positive. > > Not always. If your code supported Python 2 in the past, or third-party > dependencies supports or supported Python 2, this warning can expose a > real bug. Even if all your and third-party code always was Python 3 > only, the standard library can contain such kind of bugs. > > Several years after the EOL of Python 2.7 and moving all living code to > Python 3 we can ignore bytes warnings as always false positive.
Even then, I don't know that we should do that. I do not believe that the EOL of Python 2 will end all confusion between byte strings and text strings. There is ample opportunity for code to accidentally compare bytes and text even in pure Python 3 code, e.g. comparing data read from files reading from files which are supposed to be opened in the same binary/text mode but aren't. -- Steven D'Aprano "Ever since I learned about confirmation bias, I've been seeing it everywhere." -- Jon Ronson -- https://mail.python.org/mailman/listinfo/python-list
