Python – Remove Set Items
In this chapter, we will explore Python sets remove with examples in the hopes that we will learn what we need to know.
Python sets remove Syntax:
set.remove(element)
Python sets remove() Parameters:
Remove() removes an element from a set by taking one argument.
Remove Item
Python sets remove an item by using either the remove() method or the discard() method.
Using the remove() method, remove “Finland”:
Example:
Reminder: The remove() method will raise an error if the item to be removed does not exist.
Using the discard() method, remove “Finland”:
Example:
Reminder: Discard() method will not raise an error if the item to remove does not exist.
You can also remove an item with the pop() method, but this method will remove the last item.
When removing items from Python sets, remember that sets are unordered, so you don’t know which item gets removed.
A pop() method returns the removed item as its return value.
Using the pop() method, remove the last item:
Example:
Reminder: As sets are unordered, you have no idea which item will be removed when you use the pop() method.
By calling clear(), the set is eliminated:
Example:
Delete the set completely with the del keyword:
Example:
Where to use Python- Set Remove Method ?
When you have a set and want to remove a particular element from it, you can use the remove() method. This method takes the value of the element as an argument and removes the element from the set if it exists. For example, if you have a set {1, 2, 3, 4, 5} and want to remove the element 3, you can use my_set.remove(3), resulting in the set {1, 2, 4, 5}.
