How do I implement the A* algorithm in Python?

How do I implement the A* algorithm in Python?

To implement the A* algorithm in Python, you'll need to define a few key components: the open set, closed set, and the cost functions.

What data structures should I use for the open and closed sets?

You can use a priority queue for the open set to efficiently get the node with the lowest cost, and a set for the closed set.

Can you provide a simple code example?

Sure! Here's a basic implementation:

import heapq

def a_star(start, goal):
    open_set = []
    heapq.heappush(open_set, (0, start))
    came_from = {}
    g_score = {start: 0}
    f_score = {start: heuristic(start, goal)}
    # Continue with the algorithm...