@alienghic The problem with information in /usr/share/doc or wherever is that it's hard to find. The only local doc I use on a regular basis is Perl because it's integrated into man, and Emacs, because it's integrated into Emacs. I don't often use Python and perhaps that's why I still can't find things with pydoc. Thus, Python, glibc and everything else? I search for it online. Stack Overflow provide the additional benefit of including examples. Reference manuals often lack these.