Support stdin in jupyter messages

[rchiodo]

I'm guessing 3 days to implement this.

I think all we need to do is change this code to allow_stdin:

    private generateRequest = (code: string, silent?: boolean): Kernel.IFuture | undefined => {
        //traceInfo(`Executing code in jupyter : ${code}`);
        try {
            const cellMatcher = new CellMatcher(this.configService.getSettings().datascience);
            return this.session ? this.session.requestExecute(
                {
                    // Remove the cell marker if we have one.
                    code: cellMatcher.stripFirstMarker(code),
                    stop_on_error: false,
                    allow_stdin: false,
                    store_history: !silent // Silent actually means don't output anything. Store_history is what affects execution_count
                },
                true
            ) : undefined;
        } catch (exc) {
            // Any errors generating a request should just be logged. User can't do anything about it.
            traceError(exc);
        }

        return undefined;
    }

Then provide UI to do the input.

[DonJayamanne]

Isn't this the same as input for Jupyter messages?

[rchiodo]

Yes. Not sure what you're asking. There's two issues related to this. One is the epic, and one is the task.

[rchiodo]

This issue is the task

[DonJayamanne]

Validated