try to find issue with path

Dockerfile

 # select base image: scipy notebook (gpu-enabled)
-FROM gitlab.ilabt.imec.be:4567/ilabt/gpu-docker-stacks/scipy-notebook:cuda10.1-ubuntu18.04
+FROM gitlab.ilabt.imec.be:4567/ilabt/gpu-docker-stacks/minimal-notebook:cuda10.1-ubuntu18.04
 
 # name your environment and choose python 3.x version
 ARG conda_env=python38
@@ -22,7 +22,7 @@ RUN conda create --quiet --yes -p "${CONDA_DIR}/envs/${conda_env}" python=${py_v
 RUN "${CONDA_DIR}/envs/${conda_env}/bin/python" -m ipykernel install --user --name="${conda_env}" 
 
 # prepend conda environment to path
-#ENV PATH "${CONDA_DIR}/envs/${conda_env}/bin:${PATH}"
+ENV PATH "${CONDA_DIR}/envs/${conda_env}/bin:${PATH}"
 
 # if you want this environment to be the default one, uncomment the following line:
 ENV CONDA_DEFAULT_ENV ${conda_env}
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