Usage

example.py:

"""Build commands with switches"""

from switches import command, commandline


@command
def spam(argument1, argument2=None):
    """Print the arguments"""
    print argument1
    if argument2 is not None:
        print argument2


@command
def eggs(argument1=True, argument2=False):
    """Conditionally print the arguments"""
    if argument1:
        print 'argument1 is True'
    if argument2:
        print 'argument2 is True'


if __name__ == '__main__':
    commandline(__doc__)

On the command line:

$ python example.py --help
usage: example.py [-h] {eggs,spam} ...

Build commands with switches

positional arguments:
  {eggs,spam}  commands
    eggs       Conditionally print the arguments
    spam       Print the arguments

optional arguments:
  -h, --help   show this help message and exit

$ python example.py spam --help
usage: example.py spam [-h] [--argument2 ARGUMENT2] argument1

positional arguments:
  argument1

optional arguments:
  -h, --help            show this help message and exit
  --argument2 ARGUMENT2
                        The default value is "None".

$ python example.py eggs --help
usage: example.py eggs [-h] [--argument1 ARGUMENT1] [--argument2 ARGUMENT2]

optional arguments:
  -h, --help            show this help message and exit
  --argument1 ARGUMENT1
                        The default value is "True".
  --argument2 ARGUMENT2
                        The default value is "False".

Full documentation can be found on Read the Docs.

Installation

Installing Switches is easy:

pip install switches

or download the source and run:

python setup.py install