ImportError: No module named 'cntk._cntk_py' about cntk-docker HOT 4 CLOSED

mikepugh I also ran into this error. I followed docker installation for Mac with cntk:2.2-cpu-python2.7, but when I run import cntk I get the following errors.

Err 1 : ImportError: No module named 'cntk._cntk_py'

Err 2 : ImportError: libnvidia-Machine Learning.so.1: cannot open shared object file: No such file or directory

Issue should be Re-Opened!!!

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With docker pull microsoft/cntk you get GPU version of CNTK. If this is what you want to do, then you need to use nvidia-docker to create container. I.e.

nvidia-docker run -d -p 8888:8888 --name cntk-jupyter-notebooks -t Microsoft/CNTK

After this everything should work.

If you do NOT want a GPU version, then pull another tag. See https://hub.docker.com/r/microsoft/cntk/ for the tag information.

Hope it helps,
Alexey.

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I've run into the originally posted import cntk error on the latest cntk:2.2-cpu-python3.5 docker image. I tested just now with both the 2.1 and 2.0 versions and they work as expected.

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Big thanks to @alexeyo26
For future reference, the correct steps for running CPU version should be taken are:

1. docker pull microsoft/cntk:2.0-cpu-python3.5
2. docker run -d -p 8888:8888 --name cntk-jupyter-notebooks -t microsoft/cntk:2.0-cpu-python3.5
3. docker exec -it cntk-jupyter-notebooks bash -c "source /cntk/activate-cntk && jupyter-notebook --no-browser --port=8888 --ip=0.0.0.0 --notebook-dir=/cntk/Tutorials --allow-root"

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