How do I create a multidimensional list in Python?

Multidimensional Lists are Lists within Lists. The left index as row number and right index as column number, for example

list[r][c]

Above, r is row number and c is column number.

Let’s see an example. For multidimensional list 2x3 −

list [2][3]

Create a Multidimensional Python List

Example

In this example, we will learn how to create a Multidimensional List in Python. We will also iterate and print the array.

# Create a Multi-Dimensional Python List
mylist = [[2,5], [10,24,68], [80]]
print("\nMultidimensional List")
for outList in mylist:
   print(outList)

Output

Multidimensional List
[2, 5]
[10, 24, 68]
[80]

How to access elements in a Multidimensional Python List

Example

In this example, we will learn how to access elements in a multidimensional list. Access using square brackets −

# Create a Multi-Dimensional Python List
mylist = [[2,5], [10,24,68], [80]]

print("\nMultidimensional List")
for outList in mylist:
   print(outList)

# Accessing Third element in the 2nd row
print("\nThird element in the 2nd row = \n",mylist[1][2])

Output

Multidimensional List
[2, 5][10, 24, 68]
[80]

Third element in the 2nd row = 
 68

Append elements in a Multidimensional List

Example

The append() method is used to append elements in a Multidimensional List. The elements added will get appended i.e. in the end −

# Create a Multi-Dimensional Python List
mylist = [[2,5], [10,24,68], [80]]

print("Multidimensional List")
for outList in mylist:
   print(outList)

# Append elements
mylist.append([65, 24])

print("\nDisplaying the updated Multidimensional List")
for outList in mylist:
   print(outList)

Output

Multidimensional List
[2, 5]
[10, 24, 68]
[80]

Displaying the updated Multidimensional List
[2, 5]
[10, 24, 68]
[80]
[65, 24]

AmitDiwan

Updated on: 16-Sep-2022

737 Views

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