def build_matrix(rows, cols):<br /> matrix = []</p> <p> for r in range(0, rows):<br /> matrix.append([0 for c in range(0, cols)])</p> <p> return matrix</p> <p>if __name__ == ‘__main__’:<br /> build_matrix(6, 10)

<br /> # Creates a list containing 5 lists, each of 8 items, all set to 0<br /> w, h = 8, 5<br /> Matrix = [[0 for x in range(w)] for y in range(h)] </p> <p>

from array import *</p> <p>T = [[11, 12, 5, 2], [15, 6,10], [10, 8, 12, 5], [12,15,8,6]]<br /> for r in T:<br /> for c in r:<br /> print(c,end = ” “)<br /> print()

l = np.zeros(shape=(2,2))

# 2D arrays in python can be used to create rudimentary games</p> <p>array_2d = [[‘row0, column0’], [‘row0, column1’], [‘row0, column2’],<br /> [‘row1, column0’], [‘row1, column1’], [‘row1, column2’],<br /> [‘row2, column0’], [‘row2, column1’], [‘row2, column2’]]<br />

grid_state = [[’empty’ for row in range(6)] for column in range(6)]<br /> print(grid_state)

import numpy as np</p> <p>#create array of arrays<br /> all_arrays = np.array([[10, 20, 30, 40, 50],<br /> [60, 70, 80, 90, 100],<br /> [110, 120, 130, 140, 150]])</p> <p>#view array of arrays<br /> print(all_arrays)</p> <p>[[ 10 20 30 40 50]<br /> [ 60 70 80 90 100]<br /> [110 120 130 140 150]]

sizeX,sizeY = 8,5<br /> Matrix = [[0]*sizeX]*sizeY<br /> #quicker than a loop

array = [[11, 12, 5, 2], [15, 6,10], [10, 8, 12, 5], [12,15,8,6]]</p> <p>print(array[0])</p> <p>print(array[1][2])

1<br /> 2<br /> 2<br /> 3<br /> 2<br /> 2<br /> 6<br /> 6<br /> 5<br /> 65<br /> 5<br /> 2<br />