python list matrix 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: python print 2d array as table

for row in A:
    for val in row:
        print '{:4}'.format(val),
    print