How do subprocess.Popen("ls | grep foo", shell=True) with shell=False?

[Chris Rebert]

On Wed, Jun 9, 2010 at 9:15 PM, Chris Seberino <cseberino at gmail.com> wrote:
> How do subprocess.Popen("ls | grep foo", shell=True) with shell=False?

I would think:

from subprocess import Popen, PIPE
ls = Popen("ls", stdout=PIPE)
grep = Popen(["grep", "foo"], stdin=ls.stdout)

Cheers,
Chris
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