Keras: pool_2d() got an unexpected keyword argument 'ws'

[abhijeet3922]

#The following github code is not consistent with keras 2.0.0.
I ran cifar10_cnn.py from examples. It is giving error in calling pool_2d(). Function arguments do not seem to be consistent.

Kindly check this.

curl -sSL https://github.com/fchollet/keras/raw/master/examples/cifar10_cnn.py | python

Using Theano backend.
x_train shape: (50000, 32, 32, 3)
50000 train samples
10000 test samples
/home/abhijeet/miniconda2/lib/python2.7/site-packages/keras/backend/theano_backend.py:1703: UserWarning: ['filter_dilation'] are now deprecated in tensor.nnet.abstract_conv.conv2d interface and will be ignored.
filter_dilation=dilation_rate)
Traceback (most recent call last):
File "", line 45, in
File "/home/abhijeet/miniconda2/lib/python2.7/site-packages/keras/models.py", line 455, in add
output_tensor = layer(self.outputs[0])
File "/home/abhijeet/miniconda2/lib/python2.7/site-packages/keras/engine/topology.py", line 545, in __call__
output = self.call(inputs, **kwargs)
File "/home/abhijeet/miniconda2/lib/python2.7/site-packages/keras/layers/pooling.py", line 154, in call
data_format=self.data_format)
File "/home/abhijeet/miniconda2/lib/python2.7/site-packages/keras/layers/pooling.py", line 217, in _pooling_function
pool_mode='max')
File "/home/abhijeet/miniconda2/lib/python2.7/site-packages/keras/backend/theano_backend.py", line 1833, in pool2d
mode='max')
TypeError: pool_2d() got an unexpected keyword argument 'ws'

[AvantiShri]

In theano 0.8, I believe the argument is ds. It seems that the code is intended for theano 0.9.

[abhijeet3922]

okay...i will check and close the issue if that is the case.

[vadimnazarov]

Any progress?

[vadimnazarov]

Updating to the latest version of Theano via

pip install --upgrade --no-deps git+git://github.com/Theano/Theano.git

worked for me.

[abhijeet3922]

Sorry for not updating.
Installed latest version of Theano and it worked for me. Though i had some different issue with 'sudo'.

Thanks @AvantiShri @vadimnazarov for help.
Closing the issue.

[mkhachay]

Unfortunately, I have the same problem as mentioned above.
Trying to run the tutorial example taken from
https://elitedatascience.com/keras-tutorial-deep-learning-in-python
I obtained the following error:

Using Theano backend.
WARNING (theano.gof.cmodule): WARNING: your Theano flags gcc.cxxflags specify an -march=X flags.
It is better to let Theano/g++ find it automatically, but we don't do it now
Traceback (most recent call last):
File "keras-proba.py", line 37, in
model.add(MaxPooling2D(pool_size=(2,2)))
File "/home/michael/anaconda2/envs/pcs_theano_2/lib/python2.7/site-packages/keras/models.py", line 455, in add
output_tensor = layer(self.outputs[0])
File "/home/michael/anaconda2/envs/pcs_theano_2/lib/python2.7/site-packages/keras/engine/topology.py", line 554, in __call__
output = self.call(inputs, **kwargs)
File "/home/michael/anaconda2/envs/pcs_theano_2/lib/python2.7/site-packages/keras/layers/pooling.py", line 154, in call
data_format=self.data_format)
File "/home/michael/anaconda2/envs/pcs_theano_2/lib/python2.7/site-packages/keras/layers/pooling.py", line 217, in _pooling_function
pool_mode='max')
File "/home/michael/anaconda2/envs/pcs_theano_2/lib/python2.7/site-packages/keras/backend/theano_backend.py", line 1856, in pool2d
mode='max')
TypeError: pool_2d() got an unexpected keyword argument 'ws'

Theano version:
Name: Theano
Version: 0.9.0.dev2
Summary: Optimizing compiler for evaluating mathematical expressions on CPUs and GPUs.
Home-page: http://deeplearning.net/software/theano/
Author: LISA laboratory, University of Montreal
Author-email: [email protected]
License: BSD
Location: /home/michael/anaconda2/envs/pcs_theano_2/lib/python2.7/site-packages/Theano-0.9.0.dev2-py2.7.egg
Requires: numpy, scipy, six

Keras version:
Name: Theano
Version: 0.9.0.dev2
Summary: Optimizing compiler for evaluating mathematical expressions on CPUs and GPUs.
Home-page: http://deeplearning.net/software/theano/
Author: LISA laboratory, University of Montreal
Author-email: [email protected]
License: BSD
Location: /home/michael/anaconda2/envs/pcs_theano_2/lib/python2.7/site-packages/Theano-0.9.0.dev2-py2.7.egg
Requires: numpy, scipy, six

[OOMMYY]

Updating to the latest version of Theano via

pip install --upgrade --no-deps git+git://github.com/Theano/Theano.git
worked for me.
👍 5

it works for me too. thx

[alyato]

@vadimnazarov @OOMMYY i upgrade the theano,but it show me

ValueError: You are tring to use the old GPU back-end. It was removed from Theano. Use device=cuda* now. See https://github.com/Theano/Theano/wiki/Converting-to-the-new-gpu-back-end%28gpuarray%29 for more information.

How do solve it? Thanks.

[Jayhello]

I use anaconda, how can I update it? pip is nouse

[Jayhello]

conda install -c conda-forge theano=0.9.0
I use this command and solve the problem.
My environment is win10 + pychrom + keras (theano backend )

[tianqig]

conda install -c conda-forge theano=0.9.0
I use this command on my Mac OS X, still not solved the problem:
TypeError: pool_2d() got an unexpected keyword argument 'ws'

Mac OS X EI Capitan
Keras 2.0.6, backend is theano 0.9
Python 2.7.13
Anaconda 4.3.1