#!/usr/bin/env python

"""
installs python files to sys.path
"""

import os
import shutil
import sys
import optparse

from distutils.sysconfig import get_python_lib

def install(path):
    """install to sys.path"""
    site_packages = get_python_lib()
    path = os.path.abspath(path)
    dirname, filename = os.path.split(path)
    root, ext = os.path.splitext(filename)
    pth = file(os.path.join(site_packages, '%s.pth' % root), 'w')
    pth.write(dirname)
    pth.close()

def main(args=sys.argv[1:]):

    # parse command line arguments
    usage = '%prog [options] python_file.py another_python_file.py [...]'

    # description formatter
    class PlainDescriptionFormatter(optparse.IndentedHelpFormatter):
        def format_description(self, description):
            if description:
                return description + '\n'
            else:
                return ''
    
    parser = optparse.OptionParser(usage=usage, description=__doc__, formatter=PlainDescriptionFormatter())
    options, args = parser.parse_args(args)

    # print usage if no files are given
    if not args:
        parser.print_usage()
        parser.exit()

    # install the things
    for python_file in args:
        install(python_file)

if __name__ == '__main__':
    main()