Add items to Python sets

Sets are the collection of items that are unordered in nature. Python supports the set function and we can define a set by using a curly bracket. Here we are going to see how to add items to sets in Python.

Methods to add items to Python set

1. Using ‘set.add()’ method:
   This is an inbuilt method through which we can add single item or a tuple into a set lets see an example below :
   Syntax = set_name.add(item_value or tuple)

   fruit_set = {'orange','apple','mango'}
   fruit_set.add('pineapple')
   print(fruit_set)

   Output:
   {'pineapple', 'apple', 'orange', 'mango'}

   i)Adding tuple:

   fruit_set1 = {'orange','apple','mango'}
   tuple2= ('grapes','strawberry','pineapple')
   fruit_set1.add(tuple2)
   print(fruit_set1)

   Output:
   {('grapes', 'strawberry', 'pineapple'), 'apple', 'orange', 'mango'}

   So we can see that tuple has successfully been added into the set. this is how we add elements or tuples using the .add function
   Note: According to Sets properties this will not add the item which is already present in the set.

2. Using ‘set.update’ method:
   This method will add multiple items to the set.
   Syntax: set_name.update(item_values)
   Let’s see an example :

   fruits= {'orange','apple','mango'}
   fruits.update(['grapes','strawberry','pineapple'])
   print(fruits)

   Output:
   {'strawberry', 'orange', 'mango', 'pineapple', 'grapes', 'apple'}

   Thus you can see that we added multiple items to the set successfully.
   These were the simple and basics approach to add items to a Python set.

Also read:

• Sets and its Methods in Python