Stream output from a subprocess to a window?

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
25/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
docker-compose, python
Domain
cli

Research direction

Start with the reported subprocess.Popen and stdout use case, then inspect prompt-toolkit's window and component concepts. The requested result is for output from docker-compose up to stream into a window or component; the issue names no files or tests, so those must be located before implementation.

Written by the indexing model from the issue text.

Description

need-better-docs

I've been poking around at this for a bit now, and I'm drawing a blank as to how I'd do this.

The basic use case is - I'd like to run the command docker-compose up, and stream it's output. If I run that command alone, it just prints it's output to stdout, I'd like it to do that, but within a window/component. Later, I'd like to add a menu, and a second window to show some other bits, but right now, I'd be happy if I could just get the basic use case up and running.

From subprocess.Popen I can either obtain a BufferedReader, or I believe the FD for it's stdout to treat it like a pipe/file.

Any pointers?

Dominant language
Python
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