.py: pypro if complete file, pycod if snippet.pyopt: visualized execution via the Online Python Tutor.f, .f90, f.95: fpro and fcod.cpp, .cxx: cpppro and cppcod.c: cpro and ccod.*sh: shpro and shcod.m: mpro and mcodptex2tex: between 40+ code styles in LaTeXpygments is used for code in HTML (ca 10 styles)