TypeError: object of type ‘zip’ has no len()、‘zip’ object is not subscriptable

zip 对象没有length属性不可以遍历

代码报错：

print(len(training_data)) # TypeError: object of type 'zip' has no len()
print(training_data[0][0].shape) # TypeError: 'zip' object is not subscriptable

源代码部分代码：

    test_data = zip(test_inputs, te_d[1])return (training_data, validation_data, test_data)

解决方法：zip对象用list包装即可

    test_data = list(zip(test_inputs, te_d[1]))return (training_data, validation_data, test_data)