[Python] After `uv init`, adding script to `[project.scripts]` does not work

I created a new project with uv 0.5.7:

uv init myproject
cd myproject
uv sync


and my project looks like this:

├── hello.py
├── pyproject.toml
├── README.md
└── uv.lock


At this point, the following work:

uv run python hello.py
uv run python -m hello


I would like to make a script name um by adding the following to pyproject.toml:

[project.scripts]
um = "hello:main"


However, that script is not found when I run it:

$ uv run um [umbala:main:]
error: Failed to spawn: `um`
Caused by: No such file or directory (os error 2)


I need help to create this script, um. What did I miss? I appreciate your time. Thank you.

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