w3resource

Python: len() function

len() function

The len() function is used to get the length of an object.

Version:

(Python 3.2.5)

Syntax:

len(s)

Parameter:

Name Description Required /
Optional
s A sequence (string, bytes, tuple, list, or range) or a collection (dictionary, set or frozen set). Required

Return value:

The number of items of an object.

Example: Python len() function

ExampleList = []
print(ExampleList, 'length is', len(ExampleList))

Output:

[] length is 0

Pictorial Presentation:

Python: Built-in-function - len() function

Example: Python len() function with List

ExampleList = [2, 4, 6]
print(ExampleList, 'length is', len(ExampleList))

Output:

[2, 4, 6] length is 3

Pictorial Presentation:

Python: Built-in-function - len() function

Example: Python len() with Tuple


ExampleTuple = (2, 4, 6)
print(ExampleTuple, 'length is', len(ExampleTuple))

Output:

(2, 4, 6) length is 3

Example: Python len() with Range


ExampleRange = range(3, 12)
print('Length of', ExampleRange, 'is', len(ExampleRange))

Output:

Length of range(3, 12) is 9

Python Code Editor:

Previous: iter()
Next: list()

Test your Python skills with w3resource's quiz



Become a Patron!

Follow us on Facebook and Twitter for latest update.

It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.

https://www.w3resource.com/python/built-in-function/len.php