In this Python program, we will learn how to merge two dictionaries into a single dictionary. In this program, we used the python dictionary built-in functions and exponent operator to perform the concatenation of two dictionaries. We used the update(), dict() function and ** operator to merge two dictionaries in python.
Here is the source code of the program to merge the two dictionaries into a single dictionary in python.
Program 1: Python Program to Merge Two Dictionaries Into Single Dictionary using update() Function
In this program, we used the python built-in update() function to merge the two dictionaries into a single dictionary.
# Python Program to Merge Two Dictionaries Into Single Dictionary
# Using update() Function
# Declare Two Dictionaries
first_Dict = {1: 'apple', 2: 'Banana' , 3: 'Orange'}
second_Dict = { 4: 'Guava', 5: 'Peach', 6: 'Mango'}
# Print the Dictionary
print("First Dictionary: ", first_Dict)
print("Second Dictionary: ", second_Dict)
# Concatenate Two Dictionaries
first_Dict.update(second_Dict)
# Print the Output
print("\nAfter Concatenating two Dictionaries: ")
print(first_Dict)
First Dictionary: {1: 'apple', 2: 'Banana', 3: 'Orange'}
Second Dictionary: {4: 'Guava', 5: 'Peach', 6: 'Mango'}
After Concatenating two Dictionaries:
{1: 'apple', 2: 'Banana', 3: 'Orange', 4: 'Guava', 5: 'Peach', 6: 'Mango'}
In this python program, we used the python built-in dist() function to merge the two dictionaries into a single dictionary. The dict() is a Python built-in function and this function returns a dictionary object or simply creates a dictionary in Python.
# Python Program to Merge Two Dictionaries Into Single Dictionary
# using dict() function
# Declare Two Dictionaries
first_Dict = {'a': 'apple', 'b': 'Banana' , 'o': 'Orange'}
second_Dict = { 'k': 'Kiwi', 'm': 'Mango'}
# Print the Dictionary
print("First Dictionary: ", first_Dict)
print("Second Dictionary: ", second_Dict)
# Concatenate Two Dictionaries and Print Output
print("\nAfter Concatenating two Dictionaries : ")
print(dict(first_Dict, **second_Dict))
First Dictionary: {'a': 'apple', 'b': 'Banana', 'o': 'Orange'}
Second Dictionary: {'k': 'Kiwi', 'm': 'Mango'}
After Concatenating two Dictionaries :
{'a': 'apple', 'b': 'Banana', 'o': 'Orange', 'k': 'Kiwi', 'm': 'Mango'}
# Python Program to Merge Two Dictionaries into Single Dictionary using **
# # Declare Two Dictionaries
first_Dict = {'a': 'apple', 'b': 'Banana' , 'o': 'Orange'}
second_Dict = { 'k': 'Kiwi', 'm': 'Mango'}
# Print the Dictionary
print("First Dictionary: ", first_Dict)
print("Second Dictionary: ", second_Dict)
finalDict={**first_Dict, **second_Dict}
# Concatenate Two Dictionaries and Print Output
print("\nAfter Concatenating two Dictionaries: \n",finalDict)
First Dictionary: {'a': 'apple', 'b': 'Banana', 'o': 'Orange'}
Second Dictionary: {'k': 'Kiwi', 'm': 'Mango'}
After Concatenating two Dictionaries:
{'a': 'apple', 'b': 'Banana', 'o': 'Orange', 'k': 'Kiwi', 'm': 'Mango'}
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