我在Google Hangouts Chat的聊天室中设置了 webhook 。
我可以成功运行他们的示例代码,它会从聊天中与 webhook 关联的机器人生成一条消息:
from httplib2 import Http
from json import dumps
#
# Hangouts Chat incoming webhook quickstart
#
def main():
url = '<INCOMING-WEBHOOK-URL>'
bot_message = {
'text' : 'Hello from Python script!'}
message_headers = { 'Content-Type': 'application/json; charset=UTF-8'}
http_obj = Http()
response = http_obj.request(
uri=url,
method='POST',
headers=message_headers,
body=dumps(bot_message),
)
print(response)
if __name__ == '__main__':
main()
但是,我希望使用标准库包发送此消息,例如urllib。
但是当我使用urllib
并运行下面的代码时,我得到一个urllib.error.HTTPError: HTTP Error 400: Bad Request
. 为什么我会收到此错误?
import json
import urllib.parse
import urllib.request
def main():
# python 3.6
url = '<INCOMING-WEBHOOK-URL>'
bot_message = {'text': 'Hello from Python script!'}
message_headers = {'Content-Type': 'application/json; charset=UTF-8'}
url_encoded = urllib.parse.urlencode(bot_message)
byte_encoded = url_encoded.encode('utf-8')
req = urllib.request.Request(url=url, data=byte_encoded, headers=message_headers)
response = urllib.request.urlopen(req)
print(response.read())
if __name__ == '__main__':
main()