14.3.3.8 Querying and manipulating your option parser
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:
- Return true if the OptionParser has an option with
option string
opt_str
(e.g.,"-q"
or"-verbose"
). - Returns the Option instance with the option string
opt_str
, orNone
if no options have that option string. - If the OptionParser has an option corresponding to
opt_str
, that option is removed. If that option provided any other option strings, all of those option strings become invalid. Ifopt_str
does not occur in any option belonging to this OptionParser, raises ValueError.
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