Upgrade described in this documentation file can be useful when using a system such as Ubuntu18, which default Python is no longer supported (in this case Python 3.6). The recommended action is to use a newer system instead of upgrading Python.
Warning: You make all changes at your own risk.
Download Python from Python releases page and extract it: https://www.python.org/downloads/release
curl -O https://www.python.org/ftp/python/3.8.13/Python-3.8.13.tgz
tar -xf Python-3.8.13.tgzPrepare the build with the .configure tool, ensuring that pip will be installed:
cd Python-3.8.13
./configure --with-ensurepip=installBuild Python with number of jobs suitable for your machine:
make -j 8Install your new Python version, making sure not to overwrite system Python by using altinstall target:
sudo make altinstallVerify your installation:
python3.8 --version
> Python 3.8.13