How to output odd numbers in data in python

The filter() function is used to filter the sequence, filter out elements that do not meet the conditions, and return a new list composed of elements that meet the conditions.

This receives two parameters, the first is a function, and the second is a sequence. Each element of the sequence is passed to the function as a parameter for evaluation, and then returns True or False. Finally, the element that returns True is placed. to a new list.

The syntax of filter() function:

filter(function, iterable)

Parameters: function -- judgment function. iterable – Iterable object.

Return value: Return list.

The following shows an example of using the filter function:

Filter out all odd numbers in the list:

#!/usr/bin/python
# -*- coding: UTF-8 -*-

def is_odd(n):
       return n % 2 == 1
       
newlist = filter(is_odd, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
print(newlist)

Output results:

[1, 3, 5, 7, 9]

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