File "/usr/local/lib/python3.5/dist-packages/keras_contrib-1.2.1-py3.5.egg/keras_contrib/backend/tensorflow_backend.py", line 10, in <module> ImportError: cannot import name '_postprocess_conv3d_output'

[OrdinaryChen]

The code raise this error when I try "python train.py "
but I check the egg file and found the "from keras.backend.tensorflow_backend import _postprocess_conv3d_output" in line10. so I try to use print(dir()) to show what this module contains.
but I can only see _preprocess_conv2d_input', '_preprocess_conv3d_input', '_preprocess_padding',
there is no function named _postprocess_conv3d_output
How can it be?

[tomonari-t]

@OrdinaryChen
I had same problem. It causes keras-contrib's this iuuse #164.

I fixed the problem to make Keras version to 2.0.8 by pip.

pip install Keras==2.0.8

[ahundt]

yeah need to use keras 2 now