Example use of locators module

locate.py

import optparse # >= 2.6
import logging
from pprint import pprint
import sys

from distlib.locators import (SimpleScrapingLocator, PyPIRPCLocator,
                              DirectoryLocator)

def main():
    # Note that project names are case-sensitive for the XML-RPC locator.
    parser = optparse.OptionParser(description='Locate distributions')
    parser.add_option('-d', '--dir', dest='dir', default=None,
                      help='Use the directory locator')
    parser.add_option('-r', '--rpc', dest='rpc', default=False,
                      help='Use the XML-RPC locator', action='store_true')
    parser.add_option('-s', '--simple', dest='simple', default=None,
                      help='Use the "simple" scraping locator',
                      action='store_true')
    parser.add_option('-u', '--url', dest='url', default=None,
                      help='Specify a URL to use for --rpc or --simple')
    options, args = parser.parse_args()
    if options.rpc:
        locator = PyPIRPCLocator(options.url or 'http://python.org/pypi')
    elif options.dir:
        locator = DirectoryLocator(options.dir)
    elif options.simple:
        locator = SimpleScrapingLocator(options.url or
                                        'http://pypi.python.org/simple/')
    else:
        raise ValueError("Don't know which locator to use.")
    d = locator.get_project(args[0])
    pprint(d)

if __name__ == '__main__':
    logging.basicConfig(format='%(name)s %(message)s',
                        #level=logging.DEBUG
                       )
    logging.getLogger().addHandler(logging.FileHandler('locate.log', 'w'))
    main()