This pitfall sounds like a good reason to have such a function in the standard library.
Elazar בתאריך יום א׳, 15 באפר׳ 2018, 13:13, מאת Serhiy Storchaka < storch...@gmail.com>: > 15.04.18 12:49, Alexey Shrub пише: > > В Воскресенье, 15 апр. 2018 в 12:40 , Serhiy Storchaka > > <storch...@gmail.com> написал: > >> If the problem is that you want to use a single line instead of three > >> line, you can add a function > > > > Yes, I think that single line with word 'rewrite' is much more readable > > than those three lines. > > And yes, I can make my own function, but it is typical task - maybe it > > must be in standard library? > > Not every three lines of code must be a function in standard library. > And these three lines don't look enough common. > > Actually the reliable code should write into a separate file and replace > the original file by the new file only if writing is successful. Or > backup the old file and restore it if writing is failed. Or do both. And > handle hard and soft links if necessary. And use file locks if needed to > prevent race condition when read/write by different processes. Depending > on the specific of the application you may need different code. Your > three lines are enough for a one-time script if the risk of a powerful > blackout or disk space exhaustion is insignificant or if the data is not > critical. > > _______________________________________________ > Python-ideas mailing list > Python-ideas@python.org > https://mail.python.org/mailman/listinfo/python-ideas > Code of Conduct: http://python.org/psf/codeofconduct/ >
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