Normally, Python uses the presence of other .py files in the file system to indicate what it can import. ... Use UV to run Python packages and programs without installing. Jul 18, 2025 3 mins.

The uv utility lets you run Python packages and libraries with one command and no setup. Here's the quick guide to running Python packages without installing them.

If you've read a fair amount of Python code, then you've probably seen this "__init__.py" file pop up quite a few times. It's ...