在调用push.send()后仅能看到{"sendno":"0","msg_id":"*********"}
建议将header中的数据添加到response中

如jpush/push/core.py的PushResponse中
def init(self, response):
self.status_code = response.status_code
data = response.json()
for (key, value) in response.headers.items():
data[key] = value
self.payload = data