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6.21.3.2 Populating the parser
There are several ways to populate the parser with options. The
preferred way is by using
<code>OptionParser.add_option()
</code>, as shown in
section
<A href=
"optparse-tutorial.html#optparse-tutorial">6.21.2</A>, the tutorial.
<tt class=
"method">add_option()
</tt> can be called in one of two
pass it an Option instance (as returned by
<tt class=
"function">make_option()
</tt>)
pass it any combination of positional and keyword arguments that are
acceptable to
<tt class=
"function">make_option()
</tt> (i.e., to the Option constructor),
and it will create the Option instance for you
The other alternative is to pass a list of pre-constructed Option
instances to the OptionParser constructor, as in:
<div class=
"verbatim"><pre>
make_option(
"-f",
"--filename",
action=
"store",
type=
"string",
dest=
"filename"),
make_option(
"-q",
"--quiet",
action=
"store_false",
dest=
"verbose"),
parser = OptionParser(option_list=option_list)
(
<tt class=
"function">make_option()
</tt> is a factory function for creating Option instances;
currently it is an alias for the Option constructor. A future version
of
<tt class=
"module">optparse
</tt> may split Option into several classes, and
<tt class=
"function">make_option()
</tt>
will pick the right class to instantiate. Do not instantiate Option
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<span class=
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2.4.2, documentation updated on
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2005.
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