python set remove
s = {0, 1, 2}
s.discard(0)
print(s)
{1, 2}
# discard() does not throw an exception if element not found
s.discard(0)
# remove() will throw
s.remove(0)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
KeyError: 0