How to use uvicorn and streamlit in a UV environment?

[dyuzhou]

Summary

I use uvicorn and streamlit in my project. The command is started normally when using the caonda environment. However, the following error is thrown when using UV. I don't know if it is a problem with my usage or something else? How should I use uv run uvicorn app:app --workers 2?

Magic number 'UVSC' or 'UVPY' not found at the end of the file. Did you append the magic number, the length and the path to the python executable at the end of the file?

Platform

Windows 11 X86

Version

uv 0.6.2

Python version

Python 3.10

[samypr100]

I tried it out and I can run uvicorn fine on windows, can you share the command steps by step that led you there?

[johannesloibl]

We got the same error but in a Hatch context (Hatch v1.14.0):

FYI @ofek

[ofek]

Can't help without a reproducible example.

[johannesloibl]

Can't help without a reproducible example.

Sry this is also not reproducible on my PC but only occurring for a colleague. I hoped you were maybe seeing this error message somewhere in the code, but i expect it has nothing to to with Hatch, just wanted you to be aware.

Weirdly calling hatch build has no problem, but running it through a hatch script

named "publish" it fails on hatch build.