def get_installed_pypackages():
    return {p.project_name.lower(): p for p in pkg_resources.working_set}
def list_snapshots_with_detail(self, params=None):
        """List the details of all snapshots."""
        url = 'snapshots/detail'
        if params:
                url += '?%s' % urllib.urlencode(params)

        resp, body = self.get(url)
        body = json.loads(body)
        return resp, body['snapshots']