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class Word(object):
    def __init__(self, text):
        self.text = text

    def __len__(self):
        return len(self.text)

    def __str__(self):
        return '文字列として読み込まれました'

    def __add__(self, other):
        return self.text + other.text

    def __eq__(self, other):
        return self.text == other.text


w = Word('test')
w2 = Word('test2')
print(len(w))#4
print(w)#文字列として読み込まれました
print(w + w2)#testtest2
print(w == w2)#FAlse
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