元組屬性？ （Python）

Question

不知道如何解決這個問題？我知之甚少.format，和我使用：

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

我收到此錯誤：

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

Answer 1

("[X]","[X]","[X]","[X]","[X]"," <- V: {} TOTAL: {}")是一個元組，而不是一個字符串。

要撥打str.format()這裏的最後一個元素，它是一個字符串對象：

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