Ritesh Raj Sarraf wrote:
> I'm using this for "option arguments" which are mutually inclusive.
> But I want the user to pass atleast one "option argument" for the program
> to function properly.
>
> For example, I have an option "--fetch-update" which requires a file "foo"
> to check what it has to fetch. If the file is provided as an argument, it
> uses it, else I add a parser.set_defaults("foo") which makes the program
> to look for it in the current working directory.
>
> WHen the program see the "--fetch-update" option, it should execute the
> required code. Now how do I check if at least one option has been passed
> at the command-line ?
> I have multiple options but I have parser.set_defaults() for each of them.
I'm sorry I don't understand your example. Wouldn't you need at least two
options to demonstrate "mutually inclusive" options? The set_default()
method seems to accept only keyword arguments -- but even it were used
correctly I'm still unclear why you would need it at all.
Perhaps you can post a few sample invocations (both correct and illegal) of
your script together with a description (in English, not code) of how the
script should react?
Peter, puzzled
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