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<H3><A NAME=
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6.21.3.8 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:
<DT><STRONG><code>has_option(opt_str)
</code></STRONG></DT>
<DD>Return true if the OptionParser has an option with
option string
<code>opt_str
</code> (e.g.,
<code>"-q"</code> or
<code>"-verbose"</code>).
<DT><STRONG><code>get_option(opt_str)
</code></STRONG></DT>
<DD>Returns the Option instance with the option string
<code>opt_str
</code>, or
<code>None
</code> if no options have that option string.
<DT><STRONG><code>remove_option(opt_str)
</code></STRONG></DT>
<DD>If the OptionParser has an option corresponding to
<code>opt_str
</code>,
that option is removed. If that option provided any other
option strings, all of those option strings become invalid.
If
<code>opt_str
</code> does not occur in any option belonging to this
OptionParser, raises ValueError.
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