Python：AttributeError：尝试从pickle文件加载时__enter__

Question

嗨，我有一个包含图像的泡菜文件。我正在尝试加载它并执行操作，但出现错误：

AttributeError                            Traceback (most recent call last)
<ipython-input-51-58c2e02a7a5a> in <module>
     21     return (x_train, y_train), (x_test, y_test)
     22 
---> 23 load_data('C:/siamfc_ardiya/data/images.pck')

<ipython-input-51-58c2e02a7a5a> in load_data(path)
     16     """
     17     #path = "C:/siamfc_ardiya/data/images.pck"
---> 18     with np.load(path, allow_pickle=True) as f:
     19         x_train, y_train = f['x_train'], f['y_train']
     20         x_test, y_test = f['x_test'], f['y_test']

AttributeError: __enter__

我的代码如下：

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import numpy as np


def load_data(path):
    """Loads the images from pickle file.
    # Arguments
        path: path where the pickle file is located

    # Returns
        Tuple of Numpy arrays: `(x_train, y_train), (x_test, y_test)`.
    """
    #path = "C:/siamfc_ardiya/data/images.pck"
    with np.load(path, allow_pickle=True) as f:
        x_train, y_train = f['x_train'], f['y_train']
        x_test, y_test = f['x_test'], f['y_test']
    return (x_train, y_train), (x_test, y_test)

load_data('C:/siamfc_ardiya/data/images.pck')

因此，在最后一行中，它应该加载pickle文件并返回Numpy数组的元组。但是相反，我得到了错误。有什么想法我做错了什么以及如何使此代码起作用？