Python 3 reference · Set Methods

Python Set clear() Method

Remove every element from the set in place, leaving an empty set. Other references to the set see the change.

Syntax

set.clear()

None.

Empty a setTry it yourself

s = {1, 2, 3}
s.clear()
print(s)

Output

set()

References see the changeTry it yourself

s = {1}
alias = s
s.clear()
print(alias)

Output

set()

Version	Change
Python 3.0	Added

set.discard() · Remove an element if it is present; do nothing if it isn't. The no-error version of remove().
set.pop() · Remove and return an arbitrary element of the set. Raises KeyError if the set is empty.
Python Sets · tutorial