Atools

Arguments that can never be recreated (arguments that use `object.__hash__`, which bases hash on `id()`) automatically delete memo when they are garbage collected. So, the following example now runs without issue.

class Foo:
pass

memoize
def bar(foo: Foo) -> None:
pass

foo = Foo()
bar(foo)
assert len(bar.memoize) == 1
del foo
assert len(bar.memoize) == 0

* Memoized functions are now tracked with weakref by this package, so they may be garbage collected.
* Memoized functions that use a non-default keygen can now be called with default kwargs omitted.