Python Library Reference

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6.20.2.1 Understanding option actions

Actions tell optparse what to do when it encounters an option on the command line. There is a fixed set of actions hard-coded into optparse; adding new actions is an advanced topic covered in section , Extending optparse. Most actions tell optparse to store a value in some variable--for example, take a string from the command line and store it in an attribute of options.

If you don't specify an option action, optparse defaults to store.

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Python Library Reference

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Release 2.5a0, documentation updated on August 30, 2005.