VS Code: Shift+Enter does not send code to Python Interactive - why?

I was struggling with the same problem, and finally have found out that it's related to the global settings.

If you go to the Settings( Ctrl + , ) you can see the search bar. There, put in 'Send Selection To Interactive Window' or the like, and click the checkbox of 'Python › Data Science: Send Selection To Interactive Window'. After that, you would be able to run certain lines directly in the Interactive Window.

Hope this could help you. :)

In my case (VS Code 1.47.2), the shortcuts Run Selection in Python Terminal and Run Selection in Python Interactive Windows are in conflict with each other (probably messed up by myself a while ago).

The resolution is straightforward: Go to

File -> Preferences -> Keyboard Shortcuts -> Type run selection.

In the result list, change the keybinding of the shortcuts Run .. in Terminal, Run .. in Interactive Windows and Run Cell to Shift+Enter, Alt+Enter and Ctrl+Enter, respectively, or whatever you like as long as no more conflict shows.

Alternatively, you can also look for all shortcuts with the shift+enter keybiding: Go to

File -> Preferences -> Keyboard Shortcuts -> Type "Shift+Enter".

In the result list, change or delete (right click -> remove keybinding or Delete) the keybinding of the shortcuts that also the same keybinding.