IndentationError:需要缩进块- Python机器学习猫/狗

Question

这是我的代码：

test_image = image.load_img('dataset/single_prediction/cat_or_dog_1.jpg', target_size = (64, 64))
test_image = image.img_to_array(test_image)
test_image = np.expand_dims(test_image, axis = 0)
result = classifier.predict(test_image)
training_set.class_indices
if result[0][0] == 1:
prediction = 'dog'
else:
prediction = 'cat' `

我有这样的错误：

File "<ipython-input-31-35ebf5fa8bf7>", line 7
prediction = 'dog'
         ^
IndentationError: expected an indented block

有谁可以帮我？

Answer 1

您的代码没有正确缩进：

test_image = image.load_img('dataset/single_prediction/cat_or_dog_1.jpg', target_size = (64, 64))
test_image = image.img_to_array(test_image)
 test_image = np.expand_dims(test_image, axis = 0)
result = classifier.predict(test_image)
training_set.class_indices
if result[0][0] == 1:
    prediction = 'dog'
else:
    prediction = 'cat' 

Answer 2

python中的块作用于缩进。请参阅：

"https://www.python.org/dev/peps/pep-0008/#indentation“

Your code should be like:  
if result[0][0] == 1:  
<4 spaces>prediction = 'dog'  
else:  
<4 spaces>prediction = 'cat'  

Answer 3

在Python中，缩进很重要。因此，您需要缩进块(例如，放入if中的内容)：

if result[0][0] == 1:
  prediction = 'dog'
#...