2 ms·

Or you can implement a binary search in your type's __contains__ and just use `"foo" in c`

• paskozdilar 4y ago
  You can do that too, using the bisect, provided you have the __len__ and __getitem__ implemented: class C: def __len__(self): ... def __getitem__(self, i): ... def __contains__(self, x): i = bisect.bisect_left(self, x) return i < len(self) and self[i] == x At that point it's just syntactic sugar.