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 = {"apple", "banana", "cherry"}
thisset.remove("banana")
print(thisset)
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Note: If the item to remove does not exist, remove() will raise an error.
Example
Remove "banana" by using the discard() method:
thisset = {"apple", "banana", "cherry"}
thisset.discard("banana")
print(thisset)
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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:
thisset = {"apple", "banana", "cherry"}
x = thisset.pop()
print(x)
print(thisset)
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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 = {"apple", "banana", "cherry"}
thisset.clear()
print(thisset)
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Example
The del keyword will delete the set completely:
thisset = {"apple", "banana", "cherry"}
del thisset
print(thisset)
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