ConflictsOptionParser 0.1.1

Example Usage

#/usr/bin/env python
# File: tryconflictsparse.py
import conflictsparse
parser = conflictsparse.ConflictsOptionParser("python %prog [OPTIONS] ARG")
# You can retain the Option instances for flexibility, in case you change
# option strings later
verbose_opt = parser.add_option('-v', '--verbose', action='store_true')
quiet_opt = parser.add_option('-q', '--quiet', action='store_true')
# Alternatively, you don't need to keep references to the instances;
# we can re-use the option strings later
parser.add_option('--no-output', action='store_true')
# Register the conflict. Specifying an error message is optional; the
# generic one that is generated will usually do.
parser.register_conflict((verbose_opt, quiet_opt, '--no-output'))
# Now we parse the arguments as we would with
# optparse.OptionParser.parse_args()
opts, args = parser.parse_args()
print "Opts are", opts
print "Args are", args

Then if we ran

python tryconflictsparse.py -v 42

we would get

Opts are {'verbose': True, 'no_output': None, 'quiet': None}
Args are ['42']

But suppose we give conflicting options on the command line.

python tryconflictsparse.py -v --no-output 42

Then the parser would automatically raise an error and exit.

Usage: python tryconflictsparse.py [OPTIONS] ARG

tryconflictsparse.py: error: --verbose, --quiet, --no-output are incompatible options.

Installation

ConflictsOptionParser is available from the Python Package Index at http://pypi.python.org/pypi/ConflictsOptionParser

You can install using pip.

pip install ConflictsOptionParser

Development

Source code is hosted on BitBucket at https://bitbucket.org/gotgenes/conflictsoptionparser/

Bug Reports

Please report any bugs on the BitBucket Issue Tracker at https://bitbucket.org/gotgenes/conflictsoptionparser/issues

Acknowledgements

This work was originally inspired by a solution on Stack Overflow by Támas.