If you’ve upgraded an existing Python interpreter with a minor point upgrade—e.g., from Python 3.11.1 to Python 3.11.3—you can upgrade any corresponding virtual environments easily enough.

When you finish working in the virtual environment, you can type deactivate to return to your global Python environment. You can then open a different environment to work on another project.

Setting up a Python project with PyO3. To start creating a PyO3 project, you need to begin with a Python virtual environment, or venv.This is not just for the sake of having your Python project ...