title: How are Python command line arguments related to methods?
body: <p>Everyone at <a href="https://stackoverflow.com/questions/9960496/class-too-big-and-hard-to-add-new-features">Class too big and hard to add new features</a> is completely unphased by the question, which somehow connects command line options to methods, but I can find no documentation for this.  It's not <code>optparse</code>, or <code>argparse</code>, or <code>sys.argv</code> - the question implies some kind of direct relationship between methods and command line options.  What am I missing?</p>