In fact, you’re cautioned not to install the usual VS Code extensions for R and Python in Positron, since the IDE already comes with that functionality built-in.

"The Python IDE is an integrated development environment that provides a complete environment for writing and running Python code", said Bilbro. Python installation on macOS ...

Unfortunately, the Python extensions, which need a language server, and Debug and Run functionality for any language, are absent from Visual Studio Code for the Web. “Limited functionality” is ...