pytest-dev / pytest-dev/pytest-xdist

[Question] running `pytest-xdist` in a read-only system

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Description

Hi team,

Greetings.

I have a question regarding the plugin when running in a read-only system like Databricks job clusters. I have disabled __pycache__ creation when running pytest with:

PYTHONDONTWRITEBYTECODE=1 and sys.dont_write_bytecode = True.

The tests were running successfully, but when I tried to enable the pytest-xdist plugin support with the -n logical or -n auto argument, pytest is creating the __pycache__ directory again and my run failed. I am guessing this is related to the pytest-xdist plugin.

Do you know if there is a way to tell pytest-xdist no to generate the __pycache__ directory?

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Research direction

Start by reproducing the read-only run with PYTHONDONTWRITEBYTECODE=1 and sys.dont_write_bytecode = True, then compare pytest-xdist with -n logical and -n auto. Determine whether pycache creation comes from pytest-xdist and document whether a configuration or workaround prevents it.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
testing-qa
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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