Can existing tools in the toolbox be edited or can their script be viewed?

Discussion created by pleatofthepants on Mar 22, 2012
Latest reply on Mar 22, 2012 by Dan_Patterson
I would like to edit the Sink tool from the hydrology toolbox, is it possible to view the python code for this tool or export it? I know that I can add it in ModelBuilder and export to python but that only shows, I would like to see all the code that the tool uses to identify sinks.