def call_application(self, application, catch_exc_info=False):
        if self.is_body_seekable:
            self.body_file_raw.seek(0)
        captured = []
        output = []
        def start_response(status, headers, exc_info=None):
            if exc_info is not None and not catch_exc_info:
                reraise(exc_info)
            captured[:] = [status, headers, exc_info]
            return output.append
        app_iter = application(self.environ, start_response)
        if output or not captured:
            try:
                output.extend(app_iter)
            finally:
                if hasattr(app_iter, 'close'):
                    app_iter.close()
            app_iter = output
        if catch_exc_info:
            return (captured[0], captured[1], app_iter, captured[2])
        else:
            return (captured[0], captured[1], app_iter)

    # Will be filled in later:
Call the given WSGI application, returning ``(status_string,
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/webob-1.2.3/webob/request.py/BaseRequest.call_application