added docstring to init_maze
stop running program even if importing
Start running singleton_maze each time for testing
col -> spot because it referse to a single spot
move space clearing into separate subroutine
use prettier unicode char for display
Impossible situation (we think)
prettier syntax for unpacking
simpler return logic
tie together two operations that should never happen separately
Loop over neighbors instead of explicitly checking each neighbor
Made Maze a class
use __str__
clean up init
whitespace