CPython.Types.Set

Any functionality not listed below is best accessed using the either the Object protocol (including callMethod, richCompare, hash, repr, isTrue, and getIter) or the Number protocol (including and, subtract, or, xor, inPlaceAnd, inPlaceSubtract, inPlaceOr, and inPlaceXor).

Documentation

class Object a => AnySet a

Instances

AnySet FrozenSet

AnySet Set

data Set

Instances

Concrete Set

Object Set

AnySet Set

Number Set

data FrozenSet

Instances

Concrete FrozenSet

Object FrozenSet

AnySet FrozenSet

Number FrozenSet

setType :: Type

frozenSetType :: Type

toSet :: [SomeObject] -> IO Set

toFrozenSet :: [SomeObject] -> IO FrozenSet

iterableToSet :: Object obj => obj -> IO Set

Return a new Set from the contents of an iterable Object. The object may be Nothing to create an empty set. Throws a TypeError if the object is not iterable.

iterableToFrozenSet :: Object obj => obj -> IO FrozenSet

Return a new FrozenSet from the contents of an iterable Object. The object may be Nothing to create an empty frozen set. Throws a TypeError if the object is not iterable.

fromSet :: AnySet set => set -> IO [SomeObject]

size :: AnySet set => set -> IO Integer

Return the size of a Set or FrozenSet.

contains :: (AnySet set, Object key) => set -> key -> IO Bool

Return True if found, False if not found. Unlike the Python __contains__() method, this computation does not automatically convert unhashable Sets into temporary FrozenSets. Throws a TypeError if the key is unhashable.

add :: (AnySet set, Object key) => set -> key -> IO ()

Add key to a Set. Also works with FrozenSet (like setItem it can be used to fill-in the values of brand new FrozenSets before they are exposed to other code). Throws a TypeError if the key is unhashable. Throws a MemoryError if there is no room to grow.

discard :: Object key => Set -> key -> IO Bool

Return True if found and removed, False if not found (no action taken). Does not throw KeyError for missing keys. Throws a TypeError if key is unhashable. Unlike the Python discard() method, this computation does not automatically convert unhashable sets into temporary FrozenSets.

pop :: Set -> IO SomeObject

Return an arbitrary object in the set, and removes the object from the set. Throws KeyError if the set is empty.

clear :: Set -> IO ()

Remove all elements from a set.