Slack APIのchat.postMessageでBotに任意の発言をさせる

postMessage.py

import requests


url = 'https://slack.com/api/'
token = 'Slack Bot API Token'

def postMessage(msg, channel):
    arguments = {
        'token': token,
        'channel': channel,
        'text': msg
    }
    res = requests.post(url + 'chat.postMessage', arguments)
    print(res.json())

if __name__ == '__main__':
    postMessage('test', 'test')