Hi unable to install prefect Orion . I am getting ImportError: cannot import name 'ThreadedChildWatcher' from 'asyncio'

Can you share more how you installed the package? You can try to reinstall using:

pip uninstall prefect
pip install -U "prefect>=2.0a9"

This way, you should get the latest version

yes i did . Package has been installed. unable to check version and when i try to run the code i am getting the I am getting ImportError: cannot import name 'ThreadedChildWatcher' from 'asyncio

what if you try installing it on WSL? I haven’t tested that on Windows yet. Also, you may try in a virtual environment with a lower Python version e.g. 3.8

Did you run it in a conda virtual environment? If Conda doesn’t work for you, I would recommend installing in WSL “pip install prefect” will install Prefect <= 1.0 rather than Orion (Prefect>=2.0)

yes . i have installed conda only

You need to then create a virtual environment

I would recommend trying WSL - Windows Subsystem for Linux. Have you tried that?

No .i dont have idea about that

here you can find more info https://docs.microsoft.com/en-us/windows/wsl/about

can you confirm prefect>=2.0a9 is not supported for direct windows?

I can only confirm that we currently don’t run any tests on Windows and haven’t optimized the package for Windows yet. Therefore, for now I would recommend installing in WSL. Alternatively - since it seems you don’t wanna try the WSL option 🙂 - you can try using Docker:

docker pull prefecthq/prefect:2.0a9-python3.9

ok

but I can confirm this error - just tried to reproduce on a windows tablet and got the same error

okay okay