python

Hi,

"A ROOT User" asks "Is it really necessary to replace CINT dictionary with cling?", bringing up very reasonable concerns and arguments against re-implementing CINT. I will try to answer his comments to clarify why we do it, and how it connects with the rest.

Enable the ROOT Python bindings

First all make sure the the ROOT Python bindings have been built: under $ROOTSYS/lib there should be modules ROOT.py and libPyROOT.so (under windows the related modules appear under$ROOTSYS/bin).

PyROOT is a Python extension module that allows the user to interact with any ROOT class from the Python interpreter. This is done generically using the ROOT dictionary, therefore there is no need to generate any Python wrapper code to include new ROOT classes. At the same time PyROOT offers the possibility to execute and evaluate any Python command or start a Python shell from the ROOT/CINT prompt. Further details are available in the PyROOT manual.