floaty-zero-slices.py

import builtins
import math

class BetterList(builtins.list):
    def __getitem__(self, k):
        if isinstance(k, slice):
            if k.start == None and k.step == None:
                if k.stop == 0.0:
                    if math.copysign(1.0, k.stop) == -1.0:
                        return self
                    else:
                        return super().__getitem__(slice(None, 0, None))
        return super().__getitem__(k)

builtins.list = BetterList

fruit = list('🍎🍌🍒')
print(fruit[:0.0])  # []
print(fruit[:-0.0]) # ['🍎', '🍌', '🍒']