example.py

from enum import Enum

puzzle = "L5, R1, L5, L1, R5, R1, R1, L4, L1, L3, R2, R4, L4, L1, L1, R2, R4, R3, L1, R4, L4, L5, L4, R4, L5, R1, R5, L2, R1, R3, L2, L4, L4, R1, L192, R5, R1, R4, L5, L4, R5, L1, L1, R48, R5, R5, L2, R4, R4, R1, R3, L1, L4, L5, R1, L4, L2, L5, R5, L2, R74, R4, L1, R188, R5, L4, L2, R5, R2, L4, R4, R3, R3, R2, R1, L3, L2, L5, L5, L2, L1, R1, R5, R4, L3, R5, L1, L3, R4, L1, L3, L2, R1, R3, R2, R5, L3, L1, L1, R5, L4, L5, R5, R2, L5, R2, L1, L5, L3, L5, L5, L1, R1, L4, L3, L1, R2, R5, L1, L3, R4, R5, L4, L1, R5, L1, R5, R5, R5, R2, R1, R2, L5, L5, L5, R4, L5, L4, L4, R5, L2, R1, R5, L1, L5, R4, L3, R4, L2, R3, R3, R3, L2, L2, L2, L1, L4, R3, L4, L2, R2, R5, L1, R2"

Directions = Enum("Directions", "NORTH EAST SOUTH WEST")

def turn(facing, vector):
    # Handle wrapping
    if facing == Directions.WEST and vector == "R":
        return Directions.NORTH
    elif facing == Directions.NORTH and vector == "L":
        return Directions.WEST
    # Handle non-wrapping
    else:
        return Directions(facing.value + (1 if vector == "R" else (-1)))

results = {}
facing = Directions.NORTH

for step in puzzle.split(", "):
    vector, steps = step[0], int(step[1:])
    facing = turn(facing, steps)
    results.setdefault(facing, 0) += steps
    
walk_distance = abs(results[Directions.NORTH] - results[Directions.SOUTH]) + \
                abs(results[Directions.EAST] - results[Directions.WEST])