method_deprecated /api/rtm.start about greetingslack

[spurin]

Looks like it's related to this - https://api.slack.com/changelog/2021-10-rtm-start-to-stop

Am guessing that most existing users may have signed up prior to November 2021 -

"Beginning today, you'll see method_deprecated warnings returned by rtm.start. After November 30, 2021, newly created apps will see the warning migrate to a method_deprecated error."

[spurin]

Had a play around and this seems to be working locally for me with a simple change

DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): slack.com:443
DEBUG:urllib3.connectionpool:https://slack.com:443 "GET /api/rtm.connect?token=<removed> HTTP/1.1" 200 298
INFO:root:{'ok': True, 'url': '<removed>', 'team': {'id': '<removed>', 'name': '<removed>', 'domain': '<removed>'}, 'self': {'id': '<removed>', 'name': 'greetingbot'}}
{'type': 'hello', 'fast_reconnect': False, 'region': 'eu-west-2', 'start': True, 'host_id': 'gs-lhr-wc-wpfl'}

Have raised 2 merge requests for your convenience -

1. Just the fix: #29
2. The fix, alongside with formatting (using black) and documentation updates (for Python 2.7 and 3 instructions): : #30

Very much appreciate your open source efforts! Thank you!!

[orliesaurus]

Thank you! Merged your work in, this was very useful!