Pygame PyOpenGL Simple voxel engine

I've been learning how to make a voxel engine, and I've been trying to build my own one on Pygame and PyOpenGL. ======= Links to useful resources ======= 1. Inspired by: 1) Minecraft 2) OpenSpades 3) Pyglet Minecraft Clone: 2. An excellent web tutorial on creating a voxel engine: 3. Face culling in OpenGL: #:~:text=This is exactly what face,lot of fragment shader calls. 4. A fast voxel traversal algorithm for interacting with voxels: 1) 2) 5. Python C API: 1) 2) 3) Creating your own cl