im looking for simple script that will compile to exe , and i found py2exe 
before i decide to work with it , what do you think are the pros and cons of the py2exe tool?
Look through the third-party libraries that you use.  Some libraries (e.g. PIL) do tricks with conditional imports that make it hard for py2exe to bundle the right code.  These issues can often be worked around, but a bit of googling up front might save you some headaches later.
what are the pros/cons of py2exe