将代码转换为python列表理解

Question

像这样的代码：

class H:
    def __init__(self, row):
        self.row = row

    @staticmethod
    def gg(word):
        if not word:
            return 0
        return 1

    def ff(self):
        l = []                         # return [sentence for sentence in self.row.split('/') for word in self.gg(sentence.split(' '))]
        for sentence in self.row.split('/'):
            num_of_syllables = 0
            for word in sentence.split(' '):
                num_of_syllables += self.gg(word)
            l.append(num_of_syllables)
        return l

是否可以缩短上述 coe 并用于列出函数 ff() 中的理解？

return [sentence for sentence in self.row.split('/') for word in self.gg(sentence.split(' '))]

Answer 1

像这样计算真值的一件非常有用的事情是bool是int 、 True == 1和False == 0的子类

def ff(self):
    return [
        sum(bool(word) for word in sentence.split(' '))
        for sentence in self.row.split('/')
    ]