[Python] Why am I getting a ModuleNotFoundError, mentioning the prefix of my broker's DNS,...

When attempting to start a Celery worker, I'm getting a ModuleNotFoundError at startup and Celery quits : [2025-03-17 17:16:42,405: CRITICAL/MainProcess] Unrecoverable error: ModuleNotFoundError("No module named 'a-redis-server'").

The odd thing - the module it was looking for was (example - not the actual value) a-redis-server, which matches the prefixed DNS for broker and backend (i.e. the value was a-redis-server.abcdef.0001.use1.cache.amazonaws.com:6379/0).

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