insertion.py

    def __setitem__(self, key: str, value: Any) -> int:
        """allow insertion of items with object[key] = value"""
        entry = Entry(key, value)
        index = entry.hash % self.actual_size
        existing_entry = self.entries[index]
        while existing_entry and not entry.compare_hash(existing_entry):
            # don't overlap existing values
            index = (index + 1) % self.actual_size
            existing_entry = self.entries[index]
        self.entries[index] = entry
        return index