Python program to copy dictionaries

1) Copy dictionaries using the copy() method

The copy() method is a built-in method in Python, which can be used to create a copy of the dictionary.

Syntax:

dictionary2 = dictionary1.copy()

Program:

# Python program to copy dictionaries 
# using the copy() method

# creating the dictionary
dict_a = {'id' : 101, 'name' : 'Amit', 'age': 21}

# creating a copy 
dict_b = dict_a.copy()

# printing the dictionaries
print("Dictionary \'dict_a\' is...")
print(dict_a)

print("Dictionary \'dict_b\' is...")
print(dict_b)

Output:

Dictionary 'dict_a' is...
{'age': 21, 'id': 101, 'name': 'Amit'}
Dictionary 'dict_b' is...
{'age': 21, 'id': 101, 'name': 'Amit'}

2) Copy dictionaries using the dict() method

The dict() method is a built-in method in Python, which is used to create a new dictionary and can also be used to create a copy of the dictionary by creating a new dictionary from an existing dictionary.

Syntax:

dictionary2 = dict(dictionary1)

Program:

# Python program to copy dictionaries 
# using the dict() method

# creating the dictionary
dict_a = {'id' : 101, 'name' : 'Amit', 'age': 21}

# creating a copy 
dict_b = dict(dict_a)

# printing the dictionaries
print("Dictionary \'dict_a\' is...")
print(dict_a)

print("Dictionary \'dict_b\' is...")
print(dict_b)

Output:

Dictionary 'dict_a' is...
{'id': 101, 'name': 'Amit', 'age': 21}
Dictionary 'dict_b' is...
{'id': 101, 'name': 'Amit', 'age': 21}