I agree, but I would go a step further.

You’re using a magic constant that doesn’t do anything at runtime. It’s only there to be parsed by static analysis. In your case that’s uv doing the parsing but another tool might delete it as unused code. In the sense that it’s one thing pretending to be another, for me, it’s in the same category as a magic comment.

Instead, why not make a call to uv telling it what to do?:

  import uv

  uv.exec(
    dependencies=[“clown”],
    python=“>=3.10”,
  )

  from clown import nose

The first call can be with any old python runtime capable of locating this hypothetical uv package. The uv package sets up the venv and python runtime and re-exec(3)s with some kind of flag, say, an environment variable.

In the second runtime uv.exec is a noop because it detects the flag.