On Thu, 5 Jul 2018 13:58:42 +0300 Ivan Pozdeev via Python-Dev <python-dev@python.org> wrote:
> On 05.07.2018 9:23, Serhiy Storchaka wrote: > > 05.07.18 01:51, Victor Stinner пише: > >> == Pattern 1, straighforward == > >> > >> while True: > >> line = input.readline() > >> if not line: > >> break > >> ... > >> > >> IMHO here assingment expression is appropriate here. The code remains > >> straighfoward to read. > >> > >> while (line := input.readline()): > >> ... > > > > We already have an idiom for this: > > > > for line in input: > > ... > > > > This is not strictly equivalent: it has internal caching unaffected by > -u and you can't iterate and .read() at the same time. You are only talking about Python 2 here. Regards Antoine. _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
