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root@stark:/opt/docker/ramiro# docker build /opt/data/temporalxd
Sending build context to Docker daemon  3.072kB
Step 1/3 : FROM python:3.8
 ---> f746089c9d02
Step 2/3 : RUN pip install datetime,pil,time,requests
 ---> Running in 977be7cb2ca0
ERROR: Invalid requirement: 'datetime,pil,time,requests'
WARNING: You are using pip version 21.2.4; however, version 21.3.1 is available.
You should consider upgrading via the '/usr/local/bin/python -m pip install --upgrade pip' command.
The command '/bin/sh -c pip install datetime,pil,time,requests' returned a non-zero code: 1
root@stark:/opt/docker/ramiro#