Sometimes, it's useful to poke around your option parser and see what's there. OptionParser provides a couple of methods to help you out:
has_option(opt_str)opt_str (e.g., "-q" or "-verbose").
get_option(opt_str)opt_str, or
None if no options have that option string.
remove_option(opt_str)opt_str,
that option is removed. If that option provided any other
option strings, all of those option strings become invalid.
If opt_str does not occur in any option belonging to this
OptionParser, raises ValueError.
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