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How do I install python3 and python3-pip on an alpine based image (without using a python image)?
$ apk add --update python3.8 python3-pip ERROR: unsatisfiable constraints: python3-pip (missing): required by: world[python3-pip] python3.8 (missing): required by: world[python3.8] 
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Don't use Alpine Linux for Python images Unless you want massively slower build times, larger images, more work, and the potential for obscure bugs, you'll want to avoid Alpine Linux as a base image. For some recommendations on what you should use, see my article on choosing a good base image.
Install the required dependency for adding custom PPAs. Then proceed and add the deadsnakes PPA to the APT package manager sources list as below. Press Enter to continue. With the deadsnakes repository added to your Ubuntu 20.04|18.04 system, now download Python 3.10 with the single command below.
This is what I use in a Dockerfile for an alpine image:
# Install python/pip ENV PYTHONUNBUFFERED=1 RUN apk add --update --no-cache python3 && ln -sf python3 /usr/bin/python RUN python3 -m ensurepip RUN pip3 install --no-cache --upgrade pip setuptools Look here: https://pkgs.alpinelinux.org/packages So what you are looking for are the python3 and py3-pip packages.
A suitable command to use inside a dockerfile/etc would be:
apk add --no-cache python3 py3-pip Explanation of the --no-cache flag
Note however, that you need to add the community repository since py3-pip is not present on main.
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