在 Heroku 上托管 python-telegram-bot 总是在几秒钟后发生冲突

Question

我使用python-telegram-bot 设置了一个电报机器人，我想将它托管在 Heroku 上。问题是服务器代码总是出错，声称有另一个机器人实例正在运行（没有）。

我像这样创建了一个Procfile：

web: python main.py

并确保requirements.txt 是最新的。

main.py:

# ... handlers ...

updater = Updater(token=os.environ['TOKEN'], use_context=True)
dispatcher = updater.dispatcher
logging.basicConfig(format='%(asctime)s  %(name)s - %(levelname)s - %(message)s',
                    level=logging.INFO)

dispatcher.add_handler(CommandHandler('help', help))


print('Started Bot. Listening for messages...')
updater.start_polling()
updater.idle()

这是错误日志：

2020-04-24T16:20:34.096562+00:00 app[web.1]: 2020-04-24 16:20:34,095  telegram.ext.dispatcher - ERROR - No error handlers are registered, logging exception.

2020-04-24T16:20:34.096564+00:00 app[web.1]: Traceback (most recent call last):
2020-04-24T16:20:34.096564+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.6/site-packages/telegram/ext/updater.py", line 380, in _network_loop_retry
2020-04-24T16:20:34.096565+00:00 app[web.1]:     if not action_cb():
2020-04-24T16:20:34.096565+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.6/site-packages/telegram/ext/updater.py", line 341, in polling_action_cb
2020-04-24T16:20:34.096609+00:00 app[web.1]:     allowed_updates=allowed_updates)
2020-04-24T16:20:34.096610+00:00 app[web.1]:   File "<decorator-gen-31>", line 2, in get_updates
2020-04-24T16:20:34.096610+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.6/site-packages/telegram/bot.py", line 70, in decorator
2020-04-24T16:20:34.096611+00:00 app[web.1]:     result = func(*args, **kwargs)
2020-04-24T16:20:34.096611+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.6/site-packages/telegram/bot.py", line 2136, in get_updates
2020-04-24T16:20:34.096612+00:00 app[web.1]:     result = self._request.post(url, data, timeout=float(read_latency) + float(timeout))
2020-04-24T16:20:34.096612+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.6/site-packages/telegram/utils/request.py", line 334, in post
2020-04-24T16:20:34.096612+00:00 app[web.1]:     **urlopen_kwargs)
2020-04-24T16:20:34.096613+00:00 app[web.1]:   File "/app/.heroku/python/lib/python3.6/site-packages/telegram/utils/request.py", line 249, in _request_wrapper
2020-04-24T16:20:34.096613+00:00 app[web.1]:     raise Conflict(message)
2020-04-24T16:20:34.096946+00:00 app[web.1]: telegram.error.Conflict: Conflict: terminated by other getUpdates request; make sure that only one bot instance is running
2020-04-24T16:20:34.523514+00:00 heroku[web.1]: State changed from starting to crashed

我确保停止任何其他正在运行的main.py。

那么我如何在 Heroku 上正确托管 bot 实例？

Answer 1

尝试改用“web”-“worker”。 这是我在 heroku 上的机器人的解决方案。