delete items from a set while iterating over it

Question

I have a set myset, and I have a function which iterates over it to perform some operation on its items and this operation ultimately deletes the item from the

Answer 1

This ought to work:

while myset:
    item = myset.pop()
    # do something

Or, if you need to remove items conditionally:

def test(item):
    return item != "foo"  # or whatever

myset = set(filter(test, myset))