Hey, how are you Thomas Kluyver? demo # -------------------- start-modules: - pip installation example1 - pip installs example2 final modules: # ---------------------------- Small Grammar 1 - 'start-modules' means ':' 2- Symbol ':' means 'pip' 3- Symbol '-' is 'white space / breakline' 4- 'end-modules' is 'end pip install in outside :' summary # ------ Python, Head Install, Modules ----- # start pip install name .... # commandline 'install' + module name # breakline is whitespace or newline too. install .... : # end pip install, command #---- Python, End Head Install, Modules --- How this #-------- Summary, Grammar case A inside ': white space a-zA-Z0-9 whitespace:' add # if add comentary #------- End Summary, Grammar case A #-------- Summary, Grammar case B outside ': add # #------- End Summary, Grammar case B #-------- Summary, Grammar case C Full model inside ': blank space a-zA-Z0-9 blank space # comment:' add # comentary #------- End Summary, Grammar case B see now... my idea # ------------------------------------------------ : install the name .... install the name ..... : import name import name 2 .... ... .. .. ..... .. .. ... # ------------------------------------------------ Best of the package.json? ^^ So I'm thinking about this ... How to solve? Solution I'll write this in Antl4! Question 1 What do you think of creating an internal extra grammar to call the pip.py file to work as a background in Python? Note I made your suggestions ... but I did not like the hack. Regards, Pedro Guilherme.