python Two-dimensional lists (arrays) code example

Example 1: create a 2d array in python

def build_matrix(rows, cols):
    matrix = []

    for r in range(0, rows):
        matrix.append([0 for c in range(0, cols)])

    return matrix

if __name__ == '__main__':
    build_matrix(6, 10)

Example 2: We pass in a 2 dimensional list. You should output the 3rd element of the 2nd row.

In a 2 dimensional list, output the 3rd element of the 2nd row.
# remember to account for 0 index
print(variable[1][2])