我已在Google Hangouts Chat的聊天室中设置了一个webhook。
我可以成功运行他们的example code,它会从与聊天中的webhook相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
并运行以下代码时,我会得到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()
答案 0 :(得分:1)
区别在于身体格式。在第一个版本中,您将转储到json中,而在第二个版本中,您将对其进行urlencode。
替换
url_encoded = urllib.parse.urlencode(bot_message)
byte_encoded = url_encoded.encode('utf-8')
带
byte_encoded = json.dumps(bot_message).encode('utf-8')