Add web based python shell to Melange. It is accessible via http://host/admin/shell url and requires developer rights. Shell project is part of google-app-engine-samples. This commit moves django configuration from main.py to separate gae_django.py module. Shell project has been modified in order to work correctly with django 1.0+. Build script has been updated and includes shell folder and gae_django.py file. http://code.google.com/p/google-app-engine-samples/source/browse/trunk/shell/

from django.core.management.base import BaseCommand, CommandError

class ArgsCommand(BaseCommand):
    """
    Command class for commands that take multiple arguments.
    """
    args = '<arg arg ...>'

    def handle(self, *args, **options):
        if not args:
            raise CommandError('Must provide the following arguments: %s' % self.args)
        return self.handle_args(*args, **options)

    def handle_args(self, *args, **options):
        raise NotImplementedError()