元组属性？ （蟒蛇）

Question

不确定如何解决这个问题？我对.format知之甚少，我正在使用：

printedxrows = [ ("[X]","[X]","[X]","[X]","[X]","  <- V: {}   TOTAL: {}")
             .format(row.count(0), sum(row))
             for row in rows ]

我收到此错误：

    for row in rows ]
AttributeError: 'tuple' object has no attribute 'format'

Answer 1

("[X]","[X]","[X]","[X]","[X]"," <- V: {} TOTAL: {}")是一个元组，而不是字符串。

你想在这里的最后一个元素上调用str.format()，这是一个字符串对象：

("[X]", "[X]", "[X]", "[X]", "[X]", "  <- V: {}   TOTAL: {}".format(row.count(0), sum(row)))