Python - Remove Set Items
Remove Item
To remove an item in a set, use the remove() , or the discard() method.
Example
Remove "banana" by using the remove()
method:
thisset.remove("banana")
print(thisset)
Note: If the item to remove does not exist, remove() will raise an error.
Example
Remove "banana" by using the discard()
method:
thisset.discard("banana")
print(thisset)
Note: If the item to remove does not exist, discard() will
NOT raise an error.
You can also use the pop() method to remove
an item, but this method will remove a random item, so you cannot be sure what item that gets removed.
The return value of the pop() method is the
removed item.
Example
Remove a random item by using the pop()
method:
x = thisset.pop()
print(x)
print(thisset)
Note: Sets are unordered, so when using the pop() method,
you do not know which item that gets removed.
Example
The clear()
method empties the set:
thisset.clear()
print(thisset)
Example
The del keyword will delete the set
completely:
del thisset
print(thisset)