python - tkinter messagebox 中的格式化方法

Question

我想使用 Python 3 中的 .format() 方法返回某个数值，并在其中使用 div 运算符 (/) 进行小型计算。

但是消息框库不支持此功能。

        #Remind dilutions
    if self.initial_concentration > (1000):
        messagebox.INFO('Since your dilution is in the lowest range, consider a 1:100 pre-dilution first, so you would have {:2f}').format(answer)

你知道我怎样才能克服这个问题吗？

谢谢

Answer 1

messagebox.INFO('Since ... have {:2f}').format(answer)
#                                     ^
# calling `format` method of the return value of the `INFO(..)`,
#   (not against the formatting string)
# which may not exists; possibly causing AttributeError

上面一行应该替换为:

messagebox.INFO('Since ... have {:2f}'.format(answer))