Mock command line arguments for Python script with `optparse`?

Question

A Python script that I want to use (called snakefood) is normally run from the commandline and takes commandline arguments, eg:

sfood /path/to/my/project

The parsing of the commandline arguments happens in a file called gendeps.py using optparse. However, I want to use the snakefood module from another script. Is there a way I can somehow mock the passing of commandline arguments to snakefood or a way of rewriting gendeps.py so that it doesn't depend on optparse anymore?

Why don't you run it via subprocess.call?

Dan D.
– Dan D.

2014-06-02 17:55:09 +00:00
Commented Jun 2, 2014 at 17:55 — Dan D.
– Dan D., Commented Jun 2, 2014 at 17:55

Martijn Pieters · Accepted Answer · 2014-06-02 18:36:34Z

17

You can always assign a new list to sys.argv:

import sys

sys.argv = ['programname', '-iq', '-q', directory]
gendeps.gendeps()

optparse uses sys.argv[1:] as input when no explicit arguments have been passed in.

edited Jun 2, 2014 at 18:36

answered Jun 2, 2014 at 17:56

Martijn Pieters

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1 Comment

mMontu Over a year ago

This answer is helpful. Just a small improvement: import os sys.argv = [os.path.basename(__file__),, '-iq', '-q', directory]

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