updating python version in docker image

3 jobs for beta in 10 minutes and 24 seconds
Name Stage Failure
failed
build:image Build Image
Removing intermediate container efea7eb76d2a
---> 6c030e88d81f
Step 6/7 : COPY $SDIST /app/
---> 320d34554621
Step 7/7 : RUN pip3 install -i https://pypi.lcsb.uni.lu/simple fractalis-*.tar.gz gunicorn
---> Running in b369f9c12d1a
/bin/sh: pip3: command not found
The command '/bin/sh -c pip3 install -i https://pypi.lcsb.uni.lu/simple fractalis-*.tar.gz gunicorn' returned a non-zero code: 127
ERROR: Job failed: exit code 127