Python Set issubset() Method

Example

If all items in set y exist in set x, then return True:

x = {"a", "b", "c"}
y = {"f", "e", "d", "c", "b", "a"}
z = x.issubset(y) 
print(z)

Run Instance

Definition and Usage

If all items in the set exist in the specified set, the issubset() method will return True, otherwise it will return False.

Syntax

set.issubset(set)

Parameter Value

Parameter Description
set Required. Retrieve the set of equal items within it.

More Examples

Example

What if not all items appear in the specified set?

If not all items in set x appear in set y, then return False:

x = {"a", "b", "c"}
y = {"f", "e", "d", "c", "b"}
z = x.issubset(y) 
print(z)

Run Instance