Be able to provide string argument to python.datascience.execSelectionInteractive for extensibility.

[andycraig]

Feature: Notebook Editor, Interactive Window, Python Editor cells

python.datascience.execSelectionInteractive executes the current selection in the Interactive Window. How about a command that accepts a string argument and executes that in the Interactive Window? Other extensions could then call this to provide more complicated versions of python.datascience.execSelectionInteractive, such as executing and advancing to the next line (#13495) or auto-detecting and executing whole code blocks (#4978).

It's straightforward to send specified text to Python or IPython running in the terminal, but as far as I know there's currently no way to send specified text to the Interactive Window. (Apologies if I've missed an existing command that allows this.)

Thank you.

Microsoft Data Science for VS Code Engineering Team: @rchiodo, @IanMatthewHuff, @DavidKutu, @DonJayamanne, @greazer, @joyceerhl

[DonJayamanne]

Thanks for the suggestion, we will discuss this in our triage meeting.

[andycraig]

Would you be interested in an external contributor PR for this?

In line with the title, I would add a string argument to python.datascience.execSelectionInteractive. If the argument is provided, it would send that string to the Interactive Window. If no argument is provided, it would follow the current behaviour: send the selection (or line, if there is no selection) to the Interactive Window.

[DavidKutu]

@andycraig we always welcome contributions!

[andycraig]

@DavidKutu Great! I will have a try at it.

[andycraig]

Feature added in #5053.