sorted() to create a new sorted list by using an iterable in Python

sorted(object,reverse,key) Returns sorted list of input iterable object

`object`	iterable Object to be sorted .
`reverse`	(Optional ) if set to True then reverse or descending order is used.
`key`	(Optional ) default is None, Function used for sorting each element.

Original iterable object is not chagned.
Using a numeric list

my_list=[12,3,8,7,14]
print(sorted(my_list))
#print(my_list)

Output

[3, 7, 8, 12, 14]

You can check the original list also ( unchanged ) .

Using a list of string

my_list=['Orange','Banana','Apple','Mango']
print(sorted(my_list))

Output

['Apple', 'Banana', 'Mango', 'Orange']

Using a string

my_str='plus2net'
print(sorted(my_str))

Output

['2', 'e', 'l', 'n', 'p', 's', 't', 'u']

reverse=True ( Optional )

We will change the order of sorting by adding reverse=True

my_list=['Orange','Banana','Apple','Mango']
print(sorted(my_list,reverse=True))

Output

['Orange', 'Mango', 'Banana', 'Apple']

Using numbers

my_list=[12,3,8,7,14]
print(sorted(my_list,reverse=True))

Output

[14, 12, 8, 7, 3]

Using key ( Optional )

We can add key to use customized sorting function.
Let us arrange in the order of length of the elements ( we will use len function )

my_list=['Three','One','Seven','thirtyfive','Two']
print(sorted(my_list,key=len))

Output ( in the order of increasing length of element )

['One', 'Two', 'Three', 'Seven', 'thirtyfive']

We can add reverse=True to get in descending order

print(sorted(my_list,key=len,reverse=True))

Output

['thirtyfive', 'Three', 'Seven', 'One', 'Two']

We can use user defined function to get sorting order based on the 2^nd element of tuple.

my_list=[(3,5),(2,1),(8,4),(3,7)]
def my_sort(my_data):
    return my_data[1]
print(sorted(my_list,key=my_sort))

Output ( in the increasing order of each 2^nd element )

[(2, 1), (8, 4), (3, 5), (3, 7)]

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Subhendu Mohapatra

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I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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