类型错误：float() 参数必须是字符串或数字，而不是“列表”

Question

My code is here:

temp = np.array([images, labels])
temp = temp.transpose()
np.random.shuffle(temp)

image_list = list(temp[: 0])
label_list = list(temp[: 1])
label_list=[int(float(i)) for i in label_list]

return image_list, label_list

And spder give the error :TypeError: float() argument must be a string or a number, not 'list'

Anyone know how to solve it? Thank you very much

Answer 1

Your label_list is a list of lists.

label_list = list(temp[: 1])

This should instead be:

label_list = temp[:1]

Then when you call for i in label_list , i will be populated with the object rather than a list.

Answer 2

You're slicing when you shouldn't be. These lines are wrong:

image_list = list(temp[: 0])
label_list = list(temp[: 1])

The slices mean that you're transforming a 2D array in to a list of arrays (even though there's probably only one array in the list). I think you want the same thing without the colons:

image_list = list(temp[0])
label_list = list(temp[1])

Here's you're indexing (rather than slicing), so you're transforming a 1D array into a single non-nested list, which I think is what you want.

Answer 3

如果您更正该列表，那么您就错误地为标签和图像列表制作了列表，然后一切正常。