registry.py 文件源码

def run_checks(self, app_configs=None, tags=None, include_deployment_checks=False):
        """
        Run all registered checks and return list of Errors and Warnings.
        """
        errors = []
        checks = self.get_checks(include_deployment_checks)

        if tags is not None:
            checks = [check for check in checks
                      if hasattr(check, 'tags') and set(check.tags) & set(tags)]
        else:
            # By default, 'database'-tagged checks are not run as they do more
            # than mere static code analysis.
            checks = [check for check in checks
                      if not hasattr(check, 'tags') or Tags.database not in check.tags]

        for check in checks:
            new_errors = check(app_configs=app_configs)
            assert is_iterable(new_errors), (
                "The function %r did not return a list. All functions registered "
                "with the checks registry must return a list." % check)
            errors.extend(new_errors)
        return errors