Python requests ConnectionError报错： connection aborted BadStatusLine

报错信息：

raise ConnectionError(err, request=request) requests.exceptions.ConnectionError: ('Connection aborted.', BadStatusLine("''", ))

涉及代码

data = {"host":host,"key":key,"value":value,"dns":ip} 

res = requests.post(url=url,json = data)

方法1： 加重试

requests.adapters.DEFAULT_RETRIES = 5

方法2：加header

headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.0; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0'} 

res = requests.post(url=url,json = data,headers=headers)

方法3： curl

1,2 都不行，curl命令，发现报错：

  Empty reply from server

答案： You get this error when your Python client receives an empty response (header /body).

python - Connection aborted.', BadStatusLine("''",) on server? - Stack Overflow