Python Grid: Creating, Accessing, and Manipulating 2D Lists

A Python grid can be represented using a two-dimensional list. Each element in the list represents a row, and each element within a row represents a cell in the grid.

Here is an example of a 3x3 grid:

grid = [['A', 'B', 'C'],
        ['D', 'E', 'F'],
        ['G', 'H', 'I']]

To access a specific cell in the grid, you can use indexing. For example, to access the cell at row 1, column 2 (E in the example grid), you can use grid[1][2].

You can also iterate over the grid using nested loops. Here is an example to print each element in the grid:

for row in grid:
    for cell in row:
        print(cell, end=' ')
    print()  # Prints a new line after each row

This would output:

A B C
D E F
G H I

You can modify the grid by assigning a new value to a specific cell. For example, to change the cell at row 0, column 1 from 'B' to 'X', you can use grid[0][1] = 'X'.