Debugging your code is a skill of its own. Let's practice and exchange experiences on debating tools and techniques.

The market-leading energy company has a new promotional strategy. It is a game, in which a gnome must find a heat pump in a maze. The first iteration is to generate a random maze. It might look like this:

    ##########
    #.#...#..#
    #........#
    #..##.##.#
    #.#..#...#
    #..#.....#
    ##.##.##.#
    #........#
    #...#....#
    ##########

In generate_maze_buggy.py you find a basic implementation of the algorithm. However, it is very buggy. There are about 20 bugs in the program.

Code example taken from advance python course