w a s d work. nothing else works. also, I solved the slow generation problem.
Takes 5 seconds to generate size 5 maze. The solution is disabling screen refreshes:
How to speed up python's 'turtle' function and stop it freezing at the end
@thoq: is that on repl? works fine for me but I just tried it in IDLE and it paused halfway through, I made this months ago but if I remember correctly it's because the turtle was inexplicably returning extremely long floats like 49.998741231245123 and I guess I forgot to make it catch that in one spot