FROM ubuntu:18.04

Update package lists

RUN apt-get update

Uninstall existing Python3.6

RUN apt-get remove -y python3.6

Install dependencies

RUN apt-get install -y build-essential wget libreadline-gplv2-dev libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev zlib1g-dev openssl libffi-dev python3-dev python3-setuptools

Download and install Python 3.10.0

RUN wget https://www.python.org/ftp/python/3.10.0/Python-3.10.0.tgz && \ tar xzf Python-3.10.0.tgz && \ cd Python-3.10.0 && \ ./configure --enable-optimizations && \ make altinstall && \ cd .. && \ rm -rf Python-3.10.0.tgz Python-3.10.0

Set Python 3.10.0 as default version

RUN update-alternatives --install /usr/bin/python3 python3 /usr/local/bin/python3.10 1

Clean up

RUN apt-get autoremove -y && \ apt-get clean && \ rm -rf /var/lib/apt/lists/*

CMD ['python3', '--version']