Set Methods
issubset()
Report whether another set contains this set.
set.issubset(other)
set.issubset() checks whether every element in the calling set is present in other.
Equivalent to the <= subset operator.
Parameters
| Name | Description |
|---|---|
| other | An iterable to test against. |
Returns
True if this set is a subset; otherwise False.
Try it
Run it and change it
vowels = {"a", "e", "i", "o", "u"}
alphabet = set("abcdefghijklmnopqrstuvwxyz")
print(vowels.issubset(alphabet))Worth knowing
- Proper subset: The method tests subset (
<=). To test strict proper subset (must be strictly smaller), use the<operator.