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Python Set copy() Method (with Examples)

Python Set copy() Method: In this tutorial, we will learn about the copy() method of the set class with its usage, syntax, parameters, return type, and examples. By IncludeHelp Last updated : June 14, 2023

Python Set copy() Method

The copy() is an inbuilt method of the set class that is used to copy the set, it returns a set that contains all elements of this set. The method is called with this set and returns a copy of it.

Syntax

The following is the syntax of copy() method:

set_name.copy()

Parameter(s):

The following are the parameter(s):

• None - It does not accept any parameter.

Return Value

The return type of this method is <class 'set'>, it returns a set contains the copy of this set.

Example 1: Use of Set copy() Method

# Python Set copy() Method (with Examples)

# declaring a set
cities = {"New Delhi", "Mumbai", "Indore", "Gwalior"}

# creating another set by using 
# copy() method
x = cities.copy()

# printing both sets
print("cities: ", cities)
print("x: ", x)

Output

cities:  {'New Delhi', 'Mumbai', 'Indore', 'Gwalior'}
x:  {'New Delhi', 'Mumbai', 'Indore', 'Gwalior'}

Example 2: Use of Set copy() Method

# declaring a set
digits = {10, 20, 30}

# printing original set
print("Original set:", digits)

# copying set
res = digits.copy()

# printing copied set
print("Copied set:", res)

# adding an element to the copied set
res.add(40)

# printing both sets after adding
# an element
print("\nAfter adding element...")
print("Original set:", digits)
print("Copied set:", res)

Output

Original set: {10, 20, 30}
Copied set: {10, 20, 30}

After adding element...
Original set: {10, 20, 30}
Copied set: {40, 10, 20, 30}