Error of padding

[chutongz]

Thanks for providing such a great code!
When I run alexnet = get_alexnet(input_size,nb_classes,mean_flag)
It occurs

TypeError                                 Traceback (most recent call last)
<ipython-input-4-aeb62c90d3b4> in <module>()
      1 print(input_size)
----> 2 alexnet = get_alexnet(input_size,nb_classes,mean_flag)
      3 
      4 #print alexnet.summary()

/media/chutz/000FC3F700054C75/AlexNet/AlexNet-Experiments-Keras/Code/alexnet_base.py in get_alexnet(input_shape, nb_classes, mean_flag)
     21 
     22         conv_2 = MaxPooling2D((3, 3), strides=(2,2))(conv_1)
---> 23         conv_2 = crosschannelnormalization(name="convpool_1")(conv_2)
     24         conv_2 = ZeroPadding2D((2,2))(conv_2)
     25 	conv_2 = merge([

~/anaconda3/lib/python3.6/site-packages/keras/engine/topology.py in __call__(self, inputs, **kwargs)
    617 
    618             # Actually call the layer, collecting output(s), mask(s), and shape(s).
--> 619             output = self.call(inputs, **kwargs)
    620             output_mask = self.compute_mask(inputs, previous_mask)
    621 

~/anaconda3/lib/python3.6/site-packages/keras/layers/core.py in call(self, inputs, mask)
    661         if has_arg(self.function, 'mask'):
    662             arguments['mask'] = mask
--> 663         return self.function(inputs, **arguments)
    664 
    665     def compute_mask(self, inputs, mask=None):

/media/chutz/000FC3F700054C75/AlexNet/AlexNet-Experiments-Keras/convnets-keras/convnetskeras/customlayers.py in f(X)
     15         half = n // 2
     16         square = K.square(X)
---> 17         extra_channels = K.spatial_2d_padding(K.permute_dimensions(square, (0,2,3,1)) , (0,half))
     18         extra_channels = K.permute_dimensions(extra_channels, (0,3,1,2))
     19         scale = k

~/anaconda3/lib/python3.6/site-packages/keras/backend/tensorflow_backend.py in spatial_2d_padding(x, padding, data_format)
   2182     """
   2183     assert len(padding) == 2
-> 2184     assert len(padding[0]) == 2
   2185     assert len(padding[1]) == 2
   2186     if data_format is None:

TypeError: object of type 'int' has no len()

and I used debug on jupyter notebook, it shows

ipdb> padding (0, 2)

Any help is appreciated!!

[duggalrahul]

Hi @chutongz,
From the error trace, I can see you are running python 3.6. This project works with the following source versions:-

• python: 2.7

• keras: 1.2

• theano: 0.9.0

[chutongz]

Hmmmm I changed the kernel into python2.7 but still got the same error

/home/chutz/anaconda3/envs/py2/lib/python2.7/site-packages/keras/backend/tensorflow_backend.pyc in spatial_2d_padding(x, padding, data_format)
   2182     """
   2183     assert len(padding) == 2
-> 2184     assert len(padding[0]) == 2
   2185     assert len(padding[1]) == 2
   2186     if data_format is None:

TypeError: object of type 'int' has no len()

[chutongz]

I refered to #2
Changed kears version into 1.2 and added .json file and it works!
Thanks a lot!!