run perl script with python

Question

I've been looking at multiple examples on here and elsewhere, but nothing seems for work for me. I know nothing about python. All I am trying to do is run a perl script simply located at

sdb1/media/process.pl

The example code that I've found runs all over the place, and mostly seems like it has extra stuff that I don't need. What I'm trying right now is

#! /usr/bin/python
pipe = subprocess.Popen(["perl", "/sdb1/media/process.pl"], stdout=subprocess.PIPE)

But that just gives me the error

NameError: name 'subprocess' is not defined

If I've missed anything important, let me know. Otherwise, thanks for your time.

smushi · Accepted Answer · 2014-10-31 04:08:31Z

5

you need to import the subprocess library to run subprocess

#! /usr/bin/python

import subprocess

pipe = subprocess.Popen(["perl", "/sdb1/media/process.pl"], stdout=subprocess.PIPE)

answered Oct 31, 2014 at 4:08

smushi

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3 Comments

user259861 Over a year ago

Too easy. Thanks. I have to wait 8 more minutes before I can accept it.

user259861 Over a year ago

One lingering question... When I run the perl script through command line, it executes the whole way through. When I do it through python, it hangs after the first line. Is there a simple solution to that?

user259861 Over a year ago

never mind. I figured it out. I just changed it to stdout=subprocess.PIPE).communicate()

CyanogenCX · Accepted Answer · 2014-10-31 04:18:44Z

5

Alternatively, if you are just using that same function a lot of times, you can do

from subprocess import Popen

then you can just call

pipe = Popen(["perl", "/sdb1/media/process.pl"], stdout=subprocess.PIPE)

I would have commented but I need 50 rep.

answered Oct 31, 2014 at 4:18

CyanogenCX

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