[ python-Feature Requests-1073198 ] Extension to optparse: options with facultative value

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Feature Requests item #1073198, was opened at 2004-11-25 09:18
Message generated for change (Settings changed) made by rhettinger
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Category: Python Library
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: pollastri (pollastri)
>Assigned to: Greg Ward (gward)
Summary: Extension to optparse: options with facultative value

Initial Comment:
When parsing command line options, I found very useful
to have an
option with a facultative value, able to do the following:

1-tell to me if the option was or was not seen on the
command line, return the value None if the option was
not seen;

2-if the option only was specified, return a default value.

3-if the option with a value was specified on the
command line, return the specified value;

A way to reach this goal can be the addition of a new
value for the options actions in module optparse, it
may be something like "store_with_default".





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