Preview python equivalent of Modelbuilder

Idea created by dgertridge on Oct 30, 2015

    Currently a user can export a model to python.  Sometimes it would be nice to just preview the python code and copy a portion to the clipboard so that it can be pasted into another module.  I currently mock up a model, export to python and edit the exported file to extract the portion I am interested in.  It would be nice to bypass that exported file.