Skip to main content

Multi-Dimensional Lists

Basics​

Multi-dimensional lists are the lists within lists.

There can be more than one additional dimension to lists in Python. Keeping in mind that a list can hold other lists, that basic principle can be applied over and over.

We have already seen 1-D List.

MyList = [1,2,3,4,5]

2-D List

MyList = [["Shashank","Muskan"],["Shivam","Akshat"]]

3-D List

MyList = [[[1,2],[3,4]]]

Creating a 1-D List​

Create a file 1_D.py

2_D.py
# Python program to create a 1-D list 
# with all 0s 
n=5
My_List_1D = [0 for i in range(n)] 
print(My_List_1D)

Output
[0, 0, 0, 0, 0]

Creating a 2-D List​

Create a file 2_D.py

2_D.py
# Python program to create a m x n matrix 
# with all 0s 
m = 4
n = 5
My_List_2D = [[0 for i in range(n)] for i in range(m)] 
print(My_List_2D)

Output
[[0, 0, 0, 0, 0], [0, 0, 0, 0, 0], [0, 0, 0, 0, 0], [0, 0, 0, 0, 0]]

Creating a 3-D List​

Create a file 3_D.py

3_D.py
# Python program to create a m x n x o matrix 
# with all 0s 
m = 2
n = 2
o = 2
My_List_3D = [[[for i in range(o)] for i in range(n)] for i in range(m)] 
print(My_List_3D)

Output
[[[0, 0], [0, 0]], [[0, 0], [0, 0]]]