Create a List of Size n in Python

Create a List of Size n

To create a list of size n in Python, multiply the element (initial value), enclosed in square brackets, by the number n.

[initail_value] * n

The above expression returns a list, of size n, with elements of the list initialised to specified initial value.

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Examples

1. Create an integer list of size 10

In the following example, we create an integer list with initial value of zero and list size of 10.

Python Program

n = 10
initial_value = 0

output = [initial_value] * n

print(output)

Output

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

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2. Create a string list of size 4

In the following example, we create a string list with initial value of 'apple' and list size of 4.

Python Program

n = 4
initial_value = 'apple'

output = [initial_value] * n

print(output)

Output

['apple', 'apple', 'apple', 'apple']

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3. Create a list of size 4 with None values

In the following example, we create a list of size 4 initial value of None.

Python Program

n = 4
initial_value = None

output = [initial_value] * n

print(output)

Output

[None, None, None, None]

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Summary

In this tutorial of Python Examples, we learned how to create a list of size n where the list is initialised with specified value, with the help of examples.