IndentationError: expected an indented block如何处理

在做到cs231n的assignment1的第一个KNN作业时，跑如下代码反的时候：

    def compute_distances_one_loop(self, X):"""Compute the distance between each test point in X and each training pointin self.X_train using a single loop over the test data.Input / Output: Same as compute_distances_two_loops"""num_test = X.shape[0]num_train = self.X_train.shape[0]dists = np.zeros((num_test, num_train))for i in xrange(num_test):######################################################################## TODO:                                                               ## Compute the l2 distance between the ith test point and all training ## points, and store the result in dists[i, :].                        ######################################################################### pass########################################################################                         END OF YOUR CODE                            ########################################################################return dists

一直提示错误：

Traceback (most recent call last):File "/opt/anaconda3/envs/tensorflow/lib/python3.7/site-packages/IPython/core/interactiveshell.py", line 3417, in run_codeexec(code_obj, self.user_global_ns, self.user_ns)File "<ipython-input-110-833c0369b4cf>", line 1, in <module>from cs231n.classifiers import KNearestNeighborFile "/Users/shili/Downloads/assignment1/cs231n/classifiers/__init__.py", line 1, in <module>from cs231n.classifiers.k_nearest_neighbor import *File "/Users/shili/Downloads/assignment1/cs231n/classifiers/k_nearest_neighbor.py", line 119return dists^
IndentationError: expected an indented block

最后发现，在第一段for循环里面，我把pass给注释掉了。

但是不能注释pass！

即使这个循环留空，也不能什么都不写，也要写一个pass。否则就会报以上的错误！

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