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pythoncommand-line-argumentsoptparse

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


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?


Solution

  • 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.