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Python Dictionary len function

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Python len Dictionary is one of a Dictionary function, used to return the dictionary length (total key value pairs). In this article, we will show you, How to use this Python Dictionary len function with practical examples.

TIP: Please refer Dictionary article to understand everything about Dictionaries.

Python Dictionary len Syntax

The basic syntax behind this len function is:

len(dictionary_name)

Python Dictionary len Example

The python len dictionary function return the length of a dictionary. Below code will print the myDict length.

# Python Dictionary len Example

myDict = {1: 'apple', 2: 'Banana' , 3: 'Orange', 4: 'Kiwi'}

print("Dictionary Items: ", myDict)

# Dictionary length
print("\nThe Dictionary length :  ",  len(myDict))

OUTPUT

Python Dictionary len 1

Python Dictionary len Example 2

In this program, we are going to insert new value to dictionary and check length. Next, we updated a value, and displayed the length.

# Python Dictionary len Example

myDict = {'name': 'Kevin', 'age': 25}

# Print Total Dictionary
print("Dictionary Items  :  ",  myDict)
print("The Dictionary length :  ",  len(myDict))

# Add an Item to Dictionary
myDict['job'] = 'Programmer'
print("\nDictionary Items  :  ",  myDict)
print("The Dictionary length :  ",  len(myDict))

# Update an Item in Dictionary
myDict['name'] = 'Python'
print("\nDictionary Items  :  ",  myDict)
print("The Dictionary length :  ",  len(myDict))

OUTPUT

Python Dictionary len 2