anchor.diff:      libxslt1-dev \
       ntp \
       pkg-config \
  -    python3-dev \
  -    python3-pip \
  -    python3.5 \
  -    && rm -rf /var/lib/apt/lists/*
  +    python3.8-dev \
  +    python3.8-venv \
  +    &&rm -rf /var/lib/apt/lists/*
   
   RUN locale-gen en_US.UTF-8
   ENV LANG en_US.UTF-8
   ENV LANGUAGE en_US:en
   ENV LC_ALL en_US.UTF-8
  -
  -RUN ln -s /usr/bin/pip3 /usr/bin/pip
  -RUN ln -s /usr/bin/python3 /usr/bin/python
   
   WORKDIR /edx/app/edxapp/edx-platform
   
  
positive.code: 
  # Install system requirements
  RUN apt-get update && \
      # Global requirements
      DEBIAN_FRONTEND=noninteractive apt-get install --yes \
      build-essential \
  
negative.code:     libxml2-dev \
      libxmlsec1-dev \
      libxslt1-dev \
      swig \
      # openedx requirements
      gettext \
  