RUN curl https://bootstrap.pypa.io/get-pip.py | python2.7
RUN pip install --upgrade pip==19.3.1
RUN pip install virtualenv==16.7.9
RUN curl https://bootstrap.pypa.io/get-pip.py | python2.7
RUN pip install --upgrade pip==19.3.1
RUN pip install virtualenv==16.7.9