Pygame | Pygame 3D Rotating Cube | Game Engine library

Here is my underdeveloped pygame ping-pong game, but my sprites(player&opponent) ain't moving, on giving a keyboard input. And when I quit the program, it yells an error pygame.error: video system not initialized. My pygame is the latest 1.9.6 version with all the files up-to-daee. However, I am certain that pygame.display is generating this error, but I even tried pygame.display.init() and that too didn't worked :(

I am trying to make a popup for messages such as "Action completed" and I want a button on it to close the popup (A simple OK which quits only the popup). It also sometimes moves behind the window which is annoying. I have some code for the button but it has an issue with the geometry of the shape since the shape isn't exactly defined as it is variable through the size of font and text length.

I have a sound that I wish to play.

My code;

i found this unfinished file in my files and now i need to finish it, only problem is idk really how do i detect collision with the bullet and the player thing and/or the bullet and the enemy thing, when the bullets collide with the enemy it still dies, i just don't remember how.

here's the code ig help thanks

I am making a clock in my game. After roughly 60 seconds it changes to the next number. I use the subroutine below to change the clock image when it needs to. My problem is that the images flickers when displayed, and I don't want that.

My code;

I did some research and found this: Setting a fixed FPS in Pygame, Python 3 and this: pygame clock.tick() vs framerate in game main loop. It is similar to what I am asking.

So the clock.tick(FPS) caps the program to run at that FPS. The reason you do this is so you can control the FPS of the program and it makes it easier for time stuff like waits.

But how can I unlimited FPS and still control my FPS for time stuff like waits? From my understanding, this is not possible, due to the fact that clock.tick(FPS) caps the FPS and while not adding it in means unlimited FPS but you not being able to control the FPS.

So it seems to be a question of weather to cap you FPS for control or have your program run as fast as possible, but without control.

In conclusion, what I am asking is four questions;

1. Pros and cons of capping your FPS
2. Pros and cons of not capping your FPS and going on with the natural FPS of your program
3. Is it possible to have unlimited FPS and still control my FPS for time stuff like waits?
4. If so, how?

So in response to my question (How to continuously move an image smoothly in Pygame?) I was told to set my framerate in order to do my animation. But no matter where I place it, clock.tick(60) does nothing. I do clock = pygame.time.Clock() BTW. So how do I do this? I have researched and found this (pygame clock.tick() vs framerate in game main loop) but I don't really understand this.

My main game function;

i hope you can help, because I'm running out of knowledge. My Problem: i want to change a variable to a new value:

I just want to play a simple MP3 file on Linux directly from the Python code.

I've looked at this and this question and tried the following libraries but all of them failed: audioplayer, Ipython.display.Audio, pydub, pygame.mixer, ossaudiodev, soundfile.

Errors that I saw often were:

• ModuleNotFoundError: No module named 'gi'
• Errors with ffmpeg