CODEWITHSUNDEEP
python
Rajat Shukla
Rajat Shukla

Reputation: 17

How to pass command-line parameters to a Perl script executed from Python

I have written this code to run a Perl script from my Python script:

#!/usr/bin/python

import subprocess

var = "/some/file/path/"
pipe = subprocess.Popen(["perl", "./SignalPktSender.pl ", var], stdin=subprocess.PIPE)

But my perl script needs command line arguments. How can I pass command arguments to the Perl script when it is run from my Python script?

Upvotes: 0

Views: 2335

Answers (1)

bouteillebleu
bouteillebleu

Reputation: 2493

From the Python docs on the subprocess module:

class subprocess.Popen(args, bufsize=0, executable=None, stdin=None, stdout=None, stderr=None, preexec_fn=None, close_fds=False, shell=False, cwd=None, env=None, universal_newlines=False, startupinfo=None, creationflags=0)

Arguments are:

args should be a string, or a sequence of program arguments. The program to execute is normally the first item in the args sequence or the string if a string is given, but can be explicitly set by using the executable argument.

Your code so far is:

pipe = subprocess.Popen(["perl", "./SignalPktSender.pl ", var], stdin=subprocess.PIPE)

which has a list at the start of the arguments you're sending, and it looks like you're already passing a command line argument (var) - just add your other command line arguments to the list after var.

Upvotes: 1

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