Push a frame to the right edge of the window, regardless of its size?

Question

Python

Hello dear reader, I'm new to PyQt and I want to make such a layout I work in Qt Designer



But when I change the screen size I come across this



I need the purple frame to always be pressed to the right edge and have a fixed width.

I would be grateful for your explanations or a link that will answer my question.

Thank you.

Answer 1

Right click on the parent frame -> Lay out and poke there, find what fits (horizontally in this case)
https://youtu.be/y9Zx_FJBC1U