py2Nsis is a Simple to Use, Nsis installers generator for python projects. It also make the setup.py for py2exe.
Nsis is a professional open source system to create Windows installers.
py2exe is a Python Distutils extension which converts Python scripts into executable Windows programs, able to run without requiring a Python installation.
py2Nsis combines the capabilities of these ones and generates directly a Windows installer with just a few information about your python code!