AttributeError: 'list' object has no attribute 'lower'

[erazemk]

I tried running the dockerized version of cachet-url-monitor, but I get the following error when running from master:

monitor_1  | Traceback (most recent call last):
monitor_1  |   File "./cachet_url_monitor/scheduler.py", line 158, in <module>
monitor_1  |     client: CachetClient = CachetClient(api_url, token)
monitor_1  |   File "/usr/local/lib/python3.7/site-packages/cachet_url_monitor-0.6.11-py3.7.egg/cachet_url_monitor/client.py", line 31, in __init__
monitor_1  |     self.url = normalize_url(url)
monitor_1  |   File "/usr/local/lib/python3.7/site-packages/cachet_url_monitor-0.6.11-py3.7.egg/cachet_url_monitor/client.py", line 13, in normalize_url
monitor_1  |     if not url.lower().startswith("http"):
monitor_1  | AttributeError: 'list' object has no attribute 'lower'

I'm not very familiar with Python, so I don't know how to fix it myself, but it seems the problem is that url in client.py:l13 is treated as a list instead of a string.

[RashKash103]

@erazemk I was seeing this error as well and after doing a little bit of debugging, I found out what was causing it.

Basically, the api_url does not support the ENVIRONMENT VARIABLE method for retrieval as the token does. So it did not work when my configuration was as follows:

...
cachet:
  api_url:
    - type: ENVIRONMENT_VARIABLE
      value: CACHET_URL
  token:
    - type: TOKEN
      value: my_token
...

I had to instead hard-code the URL into the config.yml like this:

...
cachet:
  api_url: http://status.cachethq.io/api/v1
  token:
    - type: TOKEN
      value: my_token
...

I know that the the Docker version does say to do it like the former but perhaps that changed in some version of cachet-url-monitor.