How to send array as argument?

Question

I want to use subprocess to open an application. However the amount of argument is not fixed. What's the best way to approach this?

subprocess.call( "path/to/app", arg[0], arg[1], arg... )

minimum arg[] is 1 but it can get as large and 10 or 20. What's the best way to send them to aubprocess's argument in this case?

@zenpoy: unfortunately that is not relevant. – ninjagecko Jul 23 '12 at 07:45 — ninjagecko, Jul 23 '12 at 07:45

sloth · Accepted Answer · 2012-07-23T07:46:38.953

4

You probably want to do

subprocess.call(["path/to/app"] + arg)

edited Jul 23 '12 at 07:46

answered Jul 23 '12 at 07:39

sloth

score 1 · Answer 2 · answered Jul 23 '12 at 07:43

There is only one argument, and it's a list:

>>> subprocess.call(["ls", "-l"])
0

You should be doing subprocess.call(["path/to/app", arg[0], arg[1], arg... ]), for example:

subprocess.call(["path/to/app"]+arg)

2 Answers2