Raycasting in Python

Template:Python On AoPS, you may think of Python as a simple system. For instance, you may be familiar with a program like this:

h = 0
print(h)

or

yousay = input('hi or bye?')
if yousay == 'hi':
   print('hello!')
else:
   print('bye...')

But what if we could make 3D scenes in AoPS Python, without importing any 3D libraries? This article is a stub. Help us out by expanding it.