Re: How does one make argparse print usage when no options areprovided on the command line?

Discussion in 'Python' started by Bruno Dupuis, Dec 5, 2012.

  1. Bruno Dupuis

    Bruno Dupuis Guest

    On Wed, Dec 05, 2012 at 08:48:30AM -0800, rh wrote:
    > I have argparse working with one exception. I wanted the program to print out
    > usage when no command line options are given. But I only came across
    > other examples where people didn't use argparse but instead printed out
    > a separate usage statement. So they used argparse for everything but the
    > case where no command line args are given.

    this is quite raw, but i'd add

    import sys
    if len(sys.argv) == 1:

    before I call parser.parse_args()

    Should work

    Bruno Dupuis
    Bruno Dupuis, Dec 5, 2012
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