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 the quick and dirty route, and just write a perl script that accepts an email message from STDIN, signs it, then returns it signed.
What I would like to do, is from the python script, pipe the email text that's in a string to the perl script, and store the result in another variable, so I can send the email signed. I'm not exactly a python guru, however, and I can't seem to find a good way to do this. I'm pretty sure I can use something like
os.system for this, but piping a variable to the perl script is something that seems to elude me.
In short: How can I pipe a variable from a python script, to a perl script, and store the result in Python?
EDIT: I forgot to include that the system I'm working with only has python v2.3
Use subprocess. Here is the Python script:
#!/usr/bin/python import subprocess var = "world" pipe = subprocess.Popen(["./x.pl", var], stdout=subprocess.PIPE) result = pipe.stdout.read() print result
And here is the Perl script:
#!/usr/bin/perl use strict; use warnings; my $name = shift; print "Hello $name!\n";