The len() function returns the length of an object (such as list) which is the number of items in the object. When the object is a string, the len() function returns the number of characters in the string.
Example
#!/usr/bin/python3
# -*- coding: UTF-8 -*-
temp1 = "Hello"
print("len(hello): ", len(temp1))
temp2 = [1,2,3,4,5]
print("len([1,2,3,4,5]): ", len(temp2))
Output:
len(world): 5
len([1,2,3,4,5]): 5
Syntax
len(x)
Parameters
x — Object.
Return Value
It returns the length of an object.