Interleaved commands and options with optparse?

[David Goodger]

Magnus Lie Hetland wrote:
> Now... I'd like to interleave "commands" (i.e. simple arguments) with
> my options, as in, e.g., cvs (or distutils, for that matter). For
> example:
> 
>    python myscript.py --globaloption command --commandoption
> 
> I'd like the semantics of the options to depend on where they are
> placed, e.g. before or after a command etc. (I might have global and
> command-specific switches with the same single-letter abbreviation but
> with different meanings -- as in cvs.)

Set up an OptionParser instance for the global options, and be sure to set
the allow_interspersed_args attribute to 0/False.  Then parse your arglist.
The global options will be parsed, and the first item of the remaining
arglist will be your subcommand.  Set up a new OptionParser instance for
that subcommand, and parse the remainder of the command line.

There's no magic trick to it, just straightforward processing.

-- 
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