len() Function Python | How to Find Length in Python

In this tutorial, We will see the len() Function Python.

len() Function Python

len() is one of the built-in functions in python. The len() function can be used to find the length of python string, python list, python tuple, python dictionary, python set, etc.

Syntax of Python len() Function

len(value)

• len() function return the total number of element in the value.
• Here, value can be string, list, tuple, set, dictionary, etc.

Example: How To Find Length of String in Python?

#Example 1

txt = "Python is a programming language" #String

txt1 = "Hello, How are you?" #String

print(len(txt)) #Output: 32

print(len(txt1)) #Output: 19

Example: How To Find Length of List in Python?

#Example 2 

list1 = [1,2,3,4,5] #List

list2 = ["Python","Java","Javascript"] #List

print(len(list1)) #Output: 5

print(len(list2)) #Output: 3

Example: How To Find Length of a Tuple in Python?

#Example 3

tup1 = (1,2,3,4,5) #tuple

tup2 = ("Python","Java","Javascript") #tuple

print(len(tup1)) #Output: 5 

print(len(tup2)) #Output: 3

Example: How To Find Length of a Set in Python?

#Example 4

set1 = {1,2,3,4,5} #set

set2 = {"Python","Java","Javascript"} #set

print(len(set1)) #Output: 5 

print(len(set2)) #Output: 3

Example: How To Find Length of a Dictionary in Python?

#Example 5 

dict = {"country1":"USA","country2":"China","country3":"India"} 

#country1,country2,country3 are the keys. 

#USA, China, India are the values. 

#Total Number of items is 3.

print(len(dict)) #Output: 3

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