Resolved: Error in TensorFlow_Audiobooks_Machine_learning_Homework

Question

Hi,
I’ve tried to run TensorFlow_Audiobooks_Machine_learning_Homework, but I’ve gotten the following error message (I’m using Python 2 and Tensorflow 1.4.0):

TypeErrorTraceback (most recent call last)
<ipython-input-2-c3f67ecae46a> in <module>()
     72     # As a reminder, it batches samples together, one-hot encodes the targets, and returns
     73     # inputs and targets batch by batch
---> 74     for input_batch, target_batch in train_data:
     75         _, batch_loss = sess.run([optimize, mean_loss], 
     76             feed_dict={inputs: input_batch, targets: target_batch})

TypeError: instance has no next() method

The first cell of this code run without errors.
How could I solve the problem?

Thanks a lot,
Ligia Batista

Answer 1

Hi Ligia, The error states 'instance has no next() method'. The point is that in Python 2 and Python 3, classes and methods are defined in different ways. You can read more about that here: https://portingguide.readthedocs.io/en/latest/classes.html If I remember correctly, to make it work, you needed to place double underscore before and after a method. So when you define

def next()

you should write:

def __next__()

instead. Iliya

Resolved: Error in TensorFlow_Audiobooks_Machine_learning_Homework

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