Docker Installation-Routine fails - version issue Matplotlib

I'm running the latest version of Docker Desktop for windows. The installation routine fails with the following error, can I fix this somehow?

    Matplotlib 3.0+ does not support Python 2.x, 3.0, 3.1, 3.2, 3.3, or 3.4.
    Beginning with Matplotlib 3.0, Python 3.5 and above is required.

    This may be due to an out of date pip.

    Make sure you have pip >= 9.0.1.

    Complete output from command python setup.py egg_info:


Matplotlib 3.0+ does not support Python 2.x, 3.0, 3.1, 3.2, 3.3, or 3.4.

Beginning with Matplotlib 3.0, Python 3.5 and above is required.



This may be due to an out of date pip.



Make sure you have pip >= 9.0.1.

After some googleing I tried adding RUN pip install --upgrade pip in line 23 of Dockerfile (just before RUN pip install -r /tmp/requirements.txt)
This allowed me to complete the installation process. The container starts without any error but I cannot access the server.

[LucaChen]

you can use it
docker pull marcelmaatkamp/aiexperiments-ai-duet