Several of the answers here explain good approaches, but below are my top 2 recommendations.

1) Bottom Screen Navigation (ease of access)

• I find this the quickest approach; however, it isn't always available for first-time users. If you're already using Python in VS Code, this is usually the easiest way to reach the Python: Select Interpreter menu. On the bottom left of your screen, look for "Python X.X.X". This is the currently detected/configured version of Python for your project, and clicking it brings you to the interpreter menu to change the Python version you're using. At the time of writing, I was using Python 3.9.1 as seen in the snippet below:

2) Command Palette

• As @jmh denoted in his answer, you can also use the 'View' tab to navigate to the Command Palette. In the Command Palette, search for Python: Select Interpreter to bring about the same menu denoted above.

If you're still having issues, there's also a VS Code Getting Started guide that walks you through setting up Virtual Environments and/or choosing different interpreters for Python that support the desired language: https://code.visualstudio.com/docs/python/python-tutorial

Happy coding!