Statsd (tbc. if more extras) tries to install provider package where it is missing

Apache Airflow version: 2.0.0b2

What happened:

Starting in 2.0.0b2, extras that aren’t also providers like statsd prevents Airflow from being installed.

How to reproduce it:

$ docker run --rm -ti python:3.6 bash
# pip install apache-airflow[statsd]==2.0.0b2
Collecting apache-airflow[statsd]==2.0.0b2                 
  Downloading apache_airflow-2.0.0b2-py3-none-any.whl (4.5 MB)                    
...
Collecting statsd<4.0,>=3.3.0; extra == "statsd"          
  Downloading statsd-3.3.0-py2.py3-none-any.whl (11 kB)
ERROR: Could not find a version that satisfies the requirement apache-airflow-providers-statsd; extra == "statsd" (from apache-airflow[statsd]==2.0.0b2) (from versions: none)         
ERROR: No matching distribution found for apache-airflow-providers-statsd; extra == "statsd" (from apache-airflow[statsd]==2.0.0b2)

I believe this is from https://github.com/apache/airflow/pull/12233

[potiuk]

Cool ! 😃 No problem. I wil add automated check for that before I fix it 😃. And see if there are more cases. We have ~70 providers so maybe others have similar problem too 😃

[jedcunningham]

Yes, those do work (sorry, I generalized without checking others).