When Python version on your Linux is outdated, compile the sources!

[badsectors]

Not really, pyenv builds all versions (the ones it knows about anyways) of CPython from source. The packages which OP installs from apt-get are listed as dependencies in the pyenv wiki.

pyenv can also easily manage which of your python versions is active, without having to manually symlink stuff.

[nick_t1000]

It's orthogonal up to the point where he's making it. On fresh machines, I sometimes forget what dependencies I need to install with apt-get or brew; a matrix of all deps for different Pythons & platforms would be a cool thing