Using Rich for a tui with panes - what would cause apparent alternating blank lines?

[pitosalas]

I've been trying to debug this app. Something I did caused a problem. But I cannot reconstruct where I went wrong. As you can see in the attached image, my panes are displayed as text as expected, but there are alternating blank lines. What might cause this?

[willmcgugan]

I would need to see your code, before I could offer any suggestions...

[pitosalas]

Here it is: https://github.com/pitosalas/ros2sysmon

There is a lot of commented out code because I've been trying to identify the problem. This is ROS2 python code but you don't need to know it, I am pretty sure the problem is not connected to it. Thanks!

[willmcgugan]

I'm afraid that's too much code for me to debug.

I suggest you produce an MRE. A single script that reproduces the issue. Building that is often easier than debugging a larger app. Often you find the issue doing that, but if you don't it gives me a better starting point.

[pitosalas]

Thanks. I just thought it was a common problem that you would just see. But I’d never ask you to debug it for me! I don’t know the acronym mre but that’s what I just started doing. Thanks and sorry for the bother! Pito

On Sep 7, 2025, at 9:48 AM, Will McGugan ***@***.***> wrote: I'm afraid that's too much code for me to debug. I suggest you produce an MRE. A single script that reproduces the issue. Building that is often easier than debugging a larger app. Often you find the issue doing that, but if you don't it gives me a better starting point. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

Best, Pito Boston Robot Hackers && Comp. Sci Faculty, Brandeis University

[willmcgugan]

No problem. And good luck!

[pitosalas]

One easy question: I am trying to get a display with say three panes. But to save space I dont want a border drawn I just want to see the borders because each pane has a different background color. What’s the idiomatic way to do that? Pito

On Sep 7, 2025, at 9:51 AM, Pito Salas ***@***.***> wrote: Thanks. I just thought it was a common problem that you would just see. But I’d never ask you to debug it for me! I don’t know the acronym mre but that’s what I just started doing. Thanks and sorry for the bother! Pito > On Sep 7, 2025, at 9:48 AM, Will McGugan ***@***.***> wrote: > > > I'm afraid that's too much code for me to debug. > I suggest you produce an MRE. A single script that reproduces the issue. Building that is often easier than debugging a larger app. Often you find the issue doing that, but if you don't it gives me a better starting point. > — > Reply to this email directly, view it on GitHub, or unsubscribe. > You are receiving this because you authored the thread.Message ID: ***@***.***> Best, Pito Boston Robot Hackers && Comp. Sci Faculty, Brandeis University

Best, Pito Boston Robot Hackers && Comp. Sci Faculty, Brandeis University

[willmcgugan]

You don't need to use Panels. You could use any other of the Rich renderables. Plain text should work.

For more flexibility, consider using Textual.

[pitosalas]

Really! I mistakenly assumed rich was what I needed and textual was “old” … I will look into it! Pito

On Sep 7, 2025, at 9:55 AM, Will McGugan ***@***.***> wrote: You don't need to use Panels. You could use any other of the Rich renderables. Plain text should work. For more flexibility, consider using Textual. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

Best, Pito Boston Robot Hackers && Comp. Sci Faculty, Brandeis University