class Thing:
    def __init__(self, value):
        self.value = value
    def __lt__(self, other):
        return self.value < other.value
    def __eq__(self, other):
        return self.value == other.value
    def __repr__(self):
        return f"Thing({repr(self.value)})"
    def __hash__(self):
        return super().__hash__()

def kevin_sorted(d):
    return {k: d[k] for k in sorted(d.keys())}

def andras_sorted(d):
    return dict(sorted(d.items()))

a = Thing(1)
b = Thing(1)
c = Thing(2)

d = {c: "X", a: "Z", b: "Y"}
print(kevin_sorted(d))
#{Thing(1): 'Z', Thing(1): 'Y', Thing(2): 'X'}
print(andras_sorted(d))
#{Thing(1): 'Y', Thing(1): 'Z', Thing(2): 'X'}