I would not recommend ExitStack for this scenario -- it's meant for situations where the cleanup is *dynamic* (see examples in the docs: https://docs.python.org/3/library/contextlib.html#contextlib.ExitStack).
On Wed, Nov 13, 2019 at 10:53 AM James Edwards <jh...@jheiv.com> wrote: > The syntax error is coming from finding "as" in a place it's unexpected. > (Additionally, if you were to drop the `as fn`, you'd get an AttributeError > as tuple.__enter__ isn't defined). > > There's a contextlib helper that you might consider: > https://docs.python.org/3/library/contextlib.html#contextlib.ExitStack > > Which you might use like: > > from contextlib import ExitStack > > with ExitStack() as stack: > f1 = stack.enter_context(open(fname1)) > f2 = stack.enter_context(open(fname2)) > f3 = stack.enter_context(open(fname3)) > f4 = stack.enter_context(open(fname4)) > ... > > On Wed, Nov 13, 2019 at 1:30 PM <gabriel.ka...@mail.de> wrote: > >> Hello everybody, >> >> today I tried to open four files simultaneously by writing >> >> with ( >> open(fname1) as f1, >> open(fname2) as f2, >> open(fname3) as f3, >> open(fname4) as f4 >> ): >> ... >> >> However, this results in a SyntaxError which is caused by the extra >> brackets. Is there a reason that brackets are not allowed in this place? >> _______________________________________________ >> Python-ideas mailing list -- python-ideas@python.org >> To unsubscribe send an email to python-ideas-le...@python.org >> https://mail.python.org/mailman3/lists/python-ideas.python.org/ >> Message archived at >> https://mail.python.org/archives/list/python-ideas@python.org/message/7GRCN5RNRWPDJ7TWJF7MK4ARSS27DK6Y/ >> Code of Conduct: http://python.org/psf/codeofconduct/ >> > _______________________________________________ > Python-ideas mailing list -- python-ideas@python.org > To unsubscribe send an email to python-ideas-le...@python.org > https://mail.python.org/mailman3/lists/python-ideas.python.org/ > Message archived at > https://mail.python.org/archives/list/python-ideas@python.org/message/VLCRQ7EKPMR6XCYIZLTOHC7K4VIJTPXT/ > Code of Conduct: http://python.org/psf/codeofconduct/ > -- --Guido van Rossum (python.org/~guido) *Pronouns: he/him **(why is my pronoun here?)* <http://feministing.com/2015/02/03/how-using-they-as-a-singular-pronoun-can-change-the-world/>
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