How to call a Perl script from Python, piping input to it?

Question

I\'m hacking some support for DomainKeys and DKIM into an open source email marketing program, which uses a python script to send the actual emails via SMTP. I decided to go

Answer 1

from subprocess import Popen, PIPE
p = Popen(['./foo.pl'], stdin=PIPE, stdout=PIPE)
p.stdin.write(the_input)
p.stdin.close()
the_output = p.stdout.read()