lint: Prevent __future__ in zulip_bots/zulip_bots/bots.
We should eventually extend this lint rule to all of
zulip_bots.
@@ -168,6 +168,9 @@ def build_custom_checkers(by_lang):
'exclude': set(['tools/provision']),
'include_only': set(['zulip/', 'tools/', 'zulip_botserver/']),
'description': 'Explicit python invocations should not include a version'},
+ {'pattern': '__future__',
+ 'include_only': set(['zulip_bots/zulip_bots/bots/']),
+ 'description': 'Bots no longer need __future__ imports.'},
{'pattern': '#!/usr/bin/env python$',
'include_only': set(['zulip_bots/']),
'description': 'Python shebangs must be python3'},
