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| 55 | <H3><A NAME="SECTION0082138000000000000000"></A><A NAME="optparse-querying-manipulating-option-parser"></A> | |
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| 57 | 6.21.3.8 Querying and manipulating your option parser | |
| 58 | </H3> | |
| 59 | ||
| 60 | <P> | |
| 61 | Sometimes, it's useful to poke around your option parser and see what's | |
| 62 | there. OptionParser provides a couple of methods to help you out: | |
| 63 | <DL> | |
| 64 | <DT><STRONG><code>has_option(opt_str)</code></STRONG></DT> | |
| 65 | <DD>Return true if the OptionParser has an option with | |
| 66 | option string <code>opt_str</code> (e.g., <code>"-q"</code> or <code>"-verbose"</code>). | |
| 67 | </DD> | |
| 68 | <DT><STRONG><code>get_option(opt_str)</code></STRONG></DT> | |
| 69 | <DD>Returns the Option instance with the option string <code>opt_str</code>, or | |
| 70 | <code>None</code> if no options have that option string. | |
| 71 | </DD> | |
| 72 | <DT><STRONG><code>remove_option(opt_str)</code></STRONG></DT> | |
| 73 | <DD>If the OptionParser has an option corresponding to <code>opt_str</code>, | |
| 74 | that option is removed. If that option provided any other | |
| 75 | option strings, all of those option strings become invalid. | |
| 76 | If <code>opt_str</code> does not occur in any option belonging to this | |
| 77 | OptionParser, raises ValueError. | |
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