anchor.diff:  COPY ./paddle/scripts/docker/root/ /root/
   
   RUN apt-get update || \
  -    apt-get install -y --allow-unauthenticated libnccl2=2.1.2-1+cuda8.0 libnccl-dev=2.1.2-1+cuda8.0
  -
  -RUN apt-get install -y --allow-downgrades patchelf \
  +    apt-get install -y --allow-downgrades patchelf \
       git python-pip python-dev python-opencv openssh-server bison \
  -    python3 python3-pip python3-dev \
  +    libnccl2=2.1.2-1+cuda8.0 libnccl-dev=2.1.2-1+cuda8.0 \
       wget unzip unrar tar xz-utils bzip2 gzip coreutils ntp \
       curl sed grep graphviz libjpeg-dev zlib1g-dev  \
       python-matplotlib gcc-4.8 g++-4.8 \
  
positive.code:     pip install -U wheel && \
      pip install -U docopt PyYAML sphinx==1.5.6 && \
      pip install sphinx-rtd-theme==0.1.9 recommonmark && \
      pip3 install --upgrade pip && \
      pip3 install -U wheel && \
      pip3 install -U docopt PyYAML sphinx==1.5.6 && \
      pip3 install sphinx-rtd-theme==0.1.9 recommonmark
  
negative.code: # Fix locales to en_US.UTF-8
  RUN localedef -i en_US -f UTF-8 en_US.UTF-8
  
  RUN apt-get install -y python3 python3-dev python3-pip
  
  # FIXME: due to temporary ipykernel dependency issue, specify ipykernel jupyter
  # version util jupyter fixes this issue.
  
  