passing a list to subprocess.check_output

Question

argument_list = ['name=Jon', 'id=100' ] output = subprocess.check_output( ['/usr/bin/python', 'test.py', argument_list ], stderr=subprocess.STDOUT)

In simple terms, I am trying to invoke a script using subprocess called test.py; I want to pass arguments to test.py through a list. Importatnt - List can be of any size.

Things I tried ,

output = subprocess.check_output( ['/usr/bin/python', 'test.py', ", ".join(argument_list) ], stderr=subprocess.STDOUT)

and

output = subprocess.check_output( ['/usr/bin/python', 'test.py', '%s' % argument_list ], stderr=subprocess.STDOUT)

Neither works because in subprocess.checkoutput should be (' ', ' ' ,' ') etc....

Is there a better way to do this ?

Veedrac · Accepted Answer · 2013-09-21 23:58:49Z

You can make a new list by adding lists together:

output = subprocess.check_output(['/usr/bin/python', 'test.py'] + argument_list, stderr=subprocess.STDOUT)

This will run test.py with argument_list as it's command-line parameters.

This is awesome. Wouldn't have crossed this hurdle without your help. Thanks!

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