GitHub user potiuk added a comment to the discussion: Error on Moving from Sequential to LocalExecutor
> Thanks for you advice, I am using macOS so 3. might be the issue. 1. and 2. > should be fine since I installed Python via Homebrew and Airflow via PyPI > using the constraints file. I'll try on a Linux system. Looking at the paths - you ARE using the built-in Python `/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/multiprocessing/spawn.py"` This - very likely - is the system Python. I guess even if you have installed Airflow with brew it might not be used by default. On top of it you are not using virtualenv - which is generaly a bad idea, - installng application in "python" without creating venv is generally very strongly discourage by the `pip` team and anyone from packaging team. It causes a LOT of problems when you mix system dependencies and `pip` installed packages. Latest version of `pip` even does not allow you to do it and you need to specigy `--allow-breaking-system-packages` or smth like that flag when you try to do it. I strongly recommend using `uv` including `uv python` and looking at setting up venv with it. It's lightning fast (comparing to brew managed python) and it has nice workflow with venv management GitHub link: https://github.com/apache/airflow/discussions/44243#discussioncomment-11606945 ---- This is an automatically sent email for [email protected]. To unsubscribe, please send an email to: [email protected]
