ubuntu-dev-tools/lp-shell

#!/usr/bin/python

# Open an interactive launchpadlib Python shell.
# It supports all known LP service instances and API versions. The login
# can optionally happen anonymously.

# Author: Martin Pitt <martin.pitt@ubuntu.com>
# Copyright: (C) 2010 Canonical Ltd.
#
# This package is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, at version 2.
#
# This package is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

import sys
import code
from optparse import OptionParser

from launchpadlib.launchpad import Launchpad
from launchpadlib.uris import lookup_service_root

def main():
    instance = 'production'
    valid_api_versions = ('beta', '1.0', 'devel')
    api_version = '1.0'

    usage = 'Usage: %prog [-a] [instance] [LP API version]'
    opt_parser = OptionParser(usage)
    opt_parser.add_option('-a', action='store_true',
                          dest='anonymous', default=False,
                          help='Login anonymously into LP.')

    (options, args) = opt_parser.parse_args()

    if len(args) >= 1:
        try:
            instance = lookup_service_root(args[0])
        except ValueError, err:
            print 'E: %s' % (err)
            print 'I: Falling back to "production".'

    if len(args) >= 2:
        if args[1] in valid_api_versions:
            api_version = args[1]
        else:
            print 'E: "%s" is not a valid LP API version.' % (args[1])
            print 'I: Falling back to "1.0".'

    if options.anonymous:
        launchpad = Launchpad.login_anonymously('udt-lp-shell', instance,
                                                version=api_version)
        banner = ('Connected anonymously to LP service "%s" with API version '
                  '"%s":' % (instance, api_version))
    else:
        launchpad = Launchpad.login_with('udt-lp-shell', instance,
                                         version=api_version)
        banner = 'Connected to LP service "%s" with API version "%s":' % \
                 (instance, api_version)

    banner += '\nNote: LP can be accessed through the "lp" object.'

    class CompleterConsole(code.InteractiveConsole):
        def __init__(self):
            local = {'lp': launchpad}
            code.InteractiveConsole.__init__(self, locals=local)
            try:
                import readline
            except ImportError:
                print 'I: readline module not available.'
            else:
                import rlcompleter
                readline.parse_and_bind("tab: complete")

    # Disable default apport hook, as lp-shell is intended for interactive use
    # and thus exceptions often bubble up to the top level.
    sys.excepthook = sys.__excepthook__

    console = CompleterConsole()
    console.interact(banner)

if __name__ == '__main__':
    main()