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Python | sorted method

Built-in Functions
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schedule Jul 1, 2022
Last updated
local_offer Python
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Python's sorted(~) method returns a sorted list from the items in an iterable.

NOTE

The sorted(~) method leaves the original iterable intact.

Parameters

1. iterable | iterable

The iterable to return sorted list from.

2. reverselink | Boolean | optional

If True, the sorted list is reversed (sorted in descending order). Default is False (ascending order).

3. keylink | function | optional

A function to specify the sorting criteria. The function should take a single argument and return a key to use for sorting.

Return value

Returns a new sorted list from the items in the iterable.

Examples

Basic usage

To return the list animals in ascending alphabetical order:

animals = ['cat', 'doge', 'bird']
sorted(animals)
['bird', 'cat', 'doge']

Reverse parameter

To return the list animals in descending alphabetical order:

animals = ['cat','doge','bird']
sorted(animals, reverse=True)
['doge', 'cat', 'bird']

Key parameter

To sort the list numbers according to the remainder when dividing each element by 3:

# A function that returns the remainder when dividing each element by 3
def modulo_3(elem):
return(elem % 3)

numbers = [5, 3, 4, 2]

# Sort numbers list using modulo_3 function as sorting key
sorted(numbers, key=modulo_3)
[3, 4, 5, 2]

Note that the list is now sorted in ascending order according to the remainder when each element is divided by 3.

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Published by Isshin Inada
Edited by 0 others
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