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RuntimeError: config set has been marked final and cannot be extended #3006
Comments
PR welcome to fix it. |
@gaborbernat Can you think of any work arounds for this? Or at least some pointers where to look? |
Sadly not 😊 you'll need to debug around the code and understand what's happening. |
Here's an updated reproducible flow (no need to run it as a Gitlab runner, tox.ini and requirements.txt are still the same) Base image:
docker build -t registry.local/base-image:latest -f Dockerfile1 .
docker build -t registry.local/tox-image:latest -f Dockerfile2 . You'll get:
(Note I know this is a weird way of running tox (with a Docker RUN command at build time) but it's just an example of how to hit the error.) |
Thanks to debugging with @anthonywritescode The problem is with If you simply run tox like so, you will get the same error:
|
Never heard about that flag. What does it do? |
@gaborbernat PYTHONOPTIMIZE , it's the same as -O but just as a env var :) |
I have no idea why that might break the world, I would say as of today it's unsupported, however, feel free to put in a PR to make it supported. I will not spend time on making this work. 👍😁 |
Issue
Describe what's the expected behaviour and what you're observing.
Getting a
RuntimeError: config set has been marked final and cannot be extended
at tox startupEnvironment
Provide at least:
Better example at: #3006 (comment)
(We have seen this in older versions of Tox and Python)
Output of running tox
Provide the output of
tox -rvv
:Minimal example
If possible, provide a minimal reproducer for the issue:
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