anchor.diff:  
   COPY requirements.txt entrypoint.sh /
   
  -RUN pip install --upgrade --no-cache-dir pip setuptools wheel \
  -    && pip install --no-cache-dir -r /requirements.txt
  +RUN pip3 install --upgrade --no-cache-dir pip setuptools wheel \
  +    && pip3 install --no-cache-dir -r /requirements.txt
   
   RUN git clone https://github.com/wjv/Multicorn.git -b nocache /src/Multicorn \
       && cd /src/Multicorn \
  
positive.code:       libxml2-dev \
        locales \
        openssl \
        python \
        python-dev \
        python-pip \
        zlib1g-dev \
    && rm -rf /var/lib/apt/lists/* \
    && localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
  
negative.code:     PGHTTP_VERSION="1.1.2" \
      PGDATA="/data" \
      POSTGRES_USER="postgres" \
      POSTGRES_GROUP="postgres" \
      PYTHON="/usr/bin/python3"
  
  RUN mkdir /src \
      && curl -s \
  