python create 2 dimensional array code example

Example 1: how to create 2d list in python

o=[]
for i in range(0,rows):
    x=[]
    for j in range(0,cols):
        x.append(0)
    o.append(x)
#if you use [[0]*cols]*rows all rows will become the same list
#so editing in one row will edit all rows

Example 2: how to create multidimensional array in python using numpy

from numpy import *
array = array([[1,2,3,4],[3,4,2,5]])

## if want you can print it 
print(array)

Example 3: 2d array python

array = [[value] * lenght] * height

//example
array = [[0] * 5] * 10

print(array)

Example 4: 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 5: python print 2d array as table

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

Example 6: python print 2d array as table

import numpy as np
print(np.matrix(A))