Keras AttributeError: 'list' object has no attribute 'ndim'

Question

I\'m running a Keras neural network model in Jupyter Notebook (Python 3.6)

I get the following error

AttributeError: \'list\' object has no attrib

Answer 1

model.fit expects x and y to be numpy array. Seems like you pass a list, it tried to get shape of input by reading ndim attribute of numpy array and failed.

You can simply transform it using np.array:

import numpy as np
...
model.fit(np.array(train_X),np.array(train_Y), epochs=20, batch_size=10)