On 12 Aug 2014 09:09, "Allen Li" <cyberdup...@gmail.com> wrote:
>
> This is a problem I sometimes run into when working with a lot of files
> simultaneously, where I need three or more `with` statements:
>
> with open('foo') as foo:
> with open('bar') as bar:
> with open('baz') as baz:
> pass
>
> Thankfully, support for multiple items was added in 3.1:
>
> with open('foo') as foo, open('bar') as bar, open('baz') as baz:
> pass
>
> However, this begs the need for a multiline form, especially when
> working with three or more items:
>
> with open('foo') as foo, \
> open('bar') as bar, \
> open('baz') as baz, \
> open('spam') as spam \
> open('eggs') as eggs:
> pass
I generally see this kind of construct as a sign that refactoring is
needed. For example, contextlib.ExitStack offers a number of ways to manage
multiple context managers dynamically rather than statically.
Regards,
Nick.
_______________________________________________
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
