Python project

main.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
from __future__ import (absolute_import, division, print_function,
                        unicode_literals)


from docopt import docopt
from schema import Optional, Schema, SchemaError

VERSION = '0.0.1'


class CommandLineInterface(object):
    """Usage: %(name)s [options] COMMAND

    Your description here

    Options:
        --version        print package version

    """

    def __init__(self):
        super(CommandLineInterface, self).__init__()

    def _validate_args(self, opt):
        schema = Schema({
            Optional('--version'): bool
        })
        try:
            opt = schema.validate(opt)
        except SchemaError as e:
            exit(e)
        return opt

    def _parse_args(self, name=None):
        if name is None:
            name = __file__
        opt = docopt(self.__doc__ % {'name': name}, argv=None, help=True,
                     version=None, options_first=False)
        return self._validate_args(opt)

    def run(self, name=None):
        opt = self._parse_args(name)
        if opt['--version']:
            print(VERSION)

if __name__ == '__main__':
    CommandLineInterface().run()

Makefile

.PHONY: TEST ENV

ENV: Makefile
	virtualenv --distribute ./env

CHECK_ENV:
ifndef VIRTUAL_ENV
	$(error PLEASE ENTER THE VIRTUALENV BEFORE FUN THE COMMAND)
endif

UPDATE_ENV: CHECK_ENV requirements.txt
	pip install --upgrade setuptools
	pip install --upgrade pip
	pip install -r requirements.txt

TESTS: CHECK_ENV
	nosetests --with-coverage

FLAKE8: CHECK_ENV
	flake8

requirements.txt

docopt==0.6.2
nose==1.3.4
schema==0.3.1
flake8==2.3.0
flake8-blind-except==0.1.0
flake8-import-order==0.5.1
coverage==3.7.1