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Python | len method
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schedule Mar 9, 2022
Last updated Python
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expand_more Python's len(~) method returns the length (the number of items) of a sequence or collection.
Parameters
1. s | sequence or collection
The object to return the number of items / length for.
Type | Examples |
|---|---|
Sequence | string, bytes, tuple, list, or range |
Collection | dictionary, set, or frozen set |
Return value
The length (number of items) of provided sequence or collection.
Examples
String
To retrieve the length of a string:
x = 'SkyTowner'len(x)
9
List
To retrieve the length of a list:
y = ['cake', 'cookie', 'cupcake', ['pudding','tea']]len(y)
4
Note that an embedded list will only count as one item.
Dictionary
To retrieve the length of a dictionary:
z = {'1':'one', '2':'two', '3':'three'}len(z)
3
Published by Isshin Inada
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Official Python Documentation
https://docs.python.org/3/library/functions.html#len
