def count(self):
        if self._result_cache is not None and not self._iter:
            return len(self._result_cache)

        return self.query.get_count(using=self.db)
Lists all your libraries.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/db/models/query.py/QuerySet.count--crossover with--dataset/ETHPy150Open bigmlcom/python/bigml/libraryhandler.py/LibraryHandler.list_libraries