特殊メソッド - Qiita

class Word(object): def __init__(self, text): self.text = text def __str__(self): return 'texttxet' def __len__(self): return len(self.text) def __add__(self, word): return self.text.lower() + word.text.lower() def __eq__(self, word): return self.text.lower == word.text.lower() w = Word('aaaaaaaaaa') w2 = Word('bbbbbbbbbbbbb') print(w) print(len(w)) print(w + w2) print(w == w2)