Python is just a pile of dicts/hashtables under the hood. Even the basic int
type is actually a dict of method names:
x = 1
print(dir(x))
['__abs__', '__add__', '__and__', '__bool__', '__ceil__', '__class__', '__delattr__', '__dir__', ... ]
PS: I will never get away from the fact that user-space memory addresses are also basically keys into the page table, so it is hashtables all the way down - you cannot escape them.
Fortunately, there is a gap in the atmosphere that allows to radiate heat directly in the outer space - so in that (narrowish) wavelenght band there is no limit. (But, notably, with current tech the gap is not very usable or has only very limited applications)