A few beginning questions

[Harry George]

"richardc" <richardc at hmgcc.gov.uk> writes:

> Ive just started playing with Python and have a couple of questions.
> 
> Im looking for an agument parsing library (from the command line), Ive come
> across optik and argtools.  What other ones are there are any of them any
> good, is there a 'standard' lib for doing this.
> 
> Also how should I '#define' magic numbers in Python.  I spent ages looking
> around for a 'define' statement or anything that will allow me to create a
> constant value 'object'.  Am I missing something very obvious ?
> 
> Also, what 'IDE/editor' do people recomend for MAC OSX, so far Ive found
> 'Hydra' to be the best as it works on plain files and has Python syntax
> highlighting... what else is there and are any of them any good.
> 
> Has nobody written an editor/IDE in Python with wxWindows so that it runs on
> all platforms ?
> 
> Many thanks
> 
> Rich
> 
> 

1. args: I use getopt, which does the job.  The idiom is:
if __name__ == '__main__':
    opts,pargs=getopt.getopt(sys.argv[1:],'hvd',
                 ['help','version','debug',
                  'bb='])
    for opt in opts:
        if opt[0]=='-h' or opt[0]=='--help':
            print modname+": version="+__version__
            usage()
            sys.exit(0)
        elif opt[0]=='-v' or opt[0]=='--version':
            print modname+": version="+__version__
            sys.exit(0)
        elif opt[0]=='-d' or opt[0]=='--debug':
            debug_p=1
        elif opt[0]=='--bb':
            opt_b=opt[1]

2. #define: Use ALLCAPS.  I put these all in a globals section at the
    top of the module in the order: docstring, imports, globals,
    utilities, common functions, classes, "main", and "if
    __name__=='__main__':"

    Also, if you have global variables, we use leading "g_"
    (e.g,"g_myglobaldata"), so they are easy to find if encountered in
    the body of the module.

-- 
harry.g.george at boeing.com
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