As in everything is contained in an archive, all the command line tools as well as all the packages (and stuff they depend on; AFAIK some Python libraries are actually implemented in C/C++). Just extract the archive and put the path to the bin folder into PATH/.bashrc, (as well as any other folders, if needed) and you’re set.

For comparison, imagine the self-contained tarballs that are provided for OpenJDK and Ziglang, on their respective websites.

Possible for Python?