[docs] [issue13437] Provide links to the source code for every module in the documentation

A.M. Kuchling added the comment: Terry: yes, the code for _decimal.c doesn't look especially helpful. (_csv.c is a bit more straightforward, but still isn't highly commented.) The problem is that decimal.py does have long docstrings & discussions, so it's certainly useful. Is it inconsistent to not link to all the relevant files? Or is it better to only link to source files that we consider helpful? ---------- _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue13437> _______________________________________