PythonVirtualOperator fails silently when virtualenv is not installed. about airflow HOT 9 OPEN

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from airflow.

Marked it as good first issue for someone to handle.

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But we do check

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I think @thisiswhereitype to check why it did not work in his case.

from airflow.

Thanks, the reason is that the is_venv_installed finds /usr/bin/virtualenv and proceeds but doesn't try to import it.

A module import would closely match what happens later.

(.venv_airflow) $ python  -c 'import importlib.util; importlib.util.find_spec("virtualenv")'
(.venv_airflow) $ which virtualenv
/usr/bin/virtualenv
(.venv_airflow) $ pip list | grep env
<no output>
(.venv_airflow) $

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Feel free to fix it, otherwise it will have to wait for someone else to pick it up.

from airflow.