Compare Two Dictionaries in Python

Hello Techies, In this tutorial we are going learn about how to compare two dictionaries.

Compare Two Dictionaries in Python

We will try to compare and see if both the dictionaries are same.

We will try to compare in 2 ways:

• Using == comparison operator
• Using deepdiff module

Using == comparison operator

# creating dictionaries

dictionary_1 = {
    'type': 'Dictionaries',
    'name': 'Tutorial',
    
}
dictionary_2 = {
    'type': 'Dictionaries',
    'name': 'Tutorial',
    
}

if dictionary_1==dictionary_2:
    print("Both are same")
else:
    print('Not same')

Output

Both are same

Explanation

• By using equality comparison operator we are checking if both are same or not.
• If comparison results True, we will print “Both are same”.
• If comparison results False, we will print “Not same”.

Using deepdiff module

 

# import libraries
from deepdiff import DeepDiff
# creating dictionaries

dictionary_1 = {
    'type': 'Dictionaries',
    'name': 'Tutorial',
    
}
dictionary_2 = {
    'type': 'Dictionaries',
    'name': 'tutorial',
    'problem':"Comparing dictionaries"
    
}

comparison = DeepDiff(dictionary_1,dictionary_2)

print(comparison)

Output

{'dictionary_item_added': [root['problem']], 'values_changed': {"root['name']": {'new_value': 'tutorial', 'old_value': 'Tutorial'}}}

Explanation

• Basically deepdiff will give us difference of almost every python object.
• To get the difference we will pass the the dictionaries as parameters to the DeepDiff.
• If both are same it will print empty dictionary.
• Else it will print changes in any key values and any new items.

So to use this deepdiff module we have to install the library explicitly.

pip install deepdiff

If we want to use it in command line we can use this line:

pip install deepdiff[cli]

If we want to add some extra functionalities we can use this line

pip install deepdiff[optimize]

 

So that’s it for this article, stay tuned for more exciting information and updates