Accepting both options and positional arguments for the same purpose
does not look like a good idea to me.
Anyway, here is a solution using plac (http://pypi.python.org/pypi/
plac) assuming you can afford an external dependency:
import plac
@plac.annotations(
personname=("person to be matched", 'option', 'i'),
groupname=("group containing people to be tested against",
'option', 'f'),
samplenumber=("how many samples to be used", 'option', 'n', int),
cutoff=("some upperlimit", 'option', 't'))
def main(personname, groupname, samplenumber, cutoff, *args):
# the implementation below does not allow mixing options and args
# it works only if you give no options and the needed 4 arguments
if (personname is None and groupname is None and samplenumber is
None
and cutoff is None): # no options given, look at the arguments
try:
personname, groupname, samplenumber, cutoff = args
except ValueError:
plac.parser_from(main).error('Not enough arguments (got %d
of 4)'
% len(args))
return personname, groupname, samplenumber, cutoff
if __name__ == '__main__':
import plac; print plac.call(main)
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