calling perl script that takes multiple input args in python

Question

Need help with integrating perl script with main python script.

I have a perl script by name: GetHostByVmname.pl

./GetHostByVmname.pl –server 10.0.1.191 –username Administrator –password P@ssword1 –vmname RHTest

I need to call above script from my python main script. Tried below, but doesn’t work:

param = "--server 10.0.1.191 --username Administrator --password P@ssword1 --vmname RHTest"


pipe = subprocess.Popen(["perl", "./GetHostByVmname.pl", param ], stdout=subprocess.PIPE)

the above code threw an error like this: Unknown option: server 10.0.1.191 --username Administrator --password P@ssword1 --vmname RHTest For a summary of command usage, type './GetHostByVmname.pl --help'. For documentation, type 'perldoc ./GetHostByVmname.pl'. — Srikar
– Srikar, Commented Apr 23, 2013 at 14:16

ikegami · Accepted Answer · 2013-04-23 05:36:00Z

5

You can either provide a shell command

Popen("./GetHostByVmname.pl –server 10.0.1.191 ...", ...)

Or an array where the the first element is the program and the rest are args.

Popen(["./GetHostByVmname.pl", "–server", "10.0.1.191", ... ], ...)

Currently, you are doing the equivalent of the following shell command:

perl ./GetHostByVmname.pl '–server 10.0.1.191 ...'

answered Apr 23, 2013 at 5:36

ikegami

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1 Comment

Srikar Over a year ago

thank you very much. I tested the solution from Alexey. But essentially both your solutions are the same.

Alexey Bureev · Accepted Answer · 2013-04-23 05:41:56Z

2

I think it will be better when you split string

./GetHostByVmname.pl –server 10.0.1.191 –username Administrator –password P@ssword1 –vmname RHTest

to a list, and after call Popen with this list as a first param. Example:

import shlex, subprocess
args_str = "./GetHostByVmname.pl –server 10.0.1.191 –username Administrator –password P@ssword1 –vmname RHTest"
args = shlex.split(args_str)
p = subprocess.Popen(args, stdout=subprocess.PIPE)

answered Apr 23, 2013 at 5:41

Alexey Bureev

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