Optimize filtering of search results Now the Permission class constructor takes an optional argument 'filter'. Now if we do not find a permission on the whole class *and* all permission objects on the current class with a check method also have a filter method we can improve search performance by filtering in the database (instead of in python).

from roundup.dist.command.build import build_message_files, check_manifest
from setuptools.command.install_lib import install_lib as base

class install_lib(base):

    def run(self):
        check_manifest()
        build_message_files(self)
        base.run(self)