Python Set add() Method

Python Set add() Method

The set.add() method adds the specified element to a set. If the element is already present in the set, it doesn't add it.

Syntax

set.add(element)

Parameter

element- This parameter represents the element that is to be added to the set.

Return

None

Example 1

# Python program explaining
# the set.add() method 
# initializing the set
fruits = {"watermelon", "banana", "apple"}
print("Actual set: ",fruits) 
# adding the more fruits in the set
fruits.add("orange") 
fruits.add("grapes")
# After adding the more fruits in the set 
print("New set: ",fruits)

Output

Actual set:  {'apple', 'watermelon', 'banana'}
New set:  {'apple', 'watermelon', 'orange', 'banana', 'grapes'}

Example 2

# Python program explaining
# the set.add() method 
# set of week
week = {'Monday', 'Tuesday', 'Wednesday','Thursday'} 
# printing the set
print('Week values:', week)
# passing tuple values
tupleVal = ('Friday', 'Saturday','Sunday') 
# adding tuple
week.add(tupleVal)
print("After adding tuple values...")
print('Week values are:', week) 
# adding same tuple values again
#the tuple elements are already present in the set, it doesn't add.
print("Again adding the tuple values...")
week.add(tupleVal)
print('Week values are:', week) 

Output

Week values: {'Monday', 'Thursday', 'Wednesday', 'Tuesday'}
After adding tuple values...
Week values are: {('Friday', 'Saturday', 'Sunday'), 'Monday', 'Thursday', 'Wednesday', 'Tuesday'}
Again adding the tuple values...
Week values are: {('Friday', 'Saturday', 'Sunday'), 'Monday', 'Thursday', 'Wednesday', 'Tuesday'}