I'm working on a app for Structural Geology called OpenStereo
(http://www.igc.usp.br/index.php?id=openstereo). It uses wxpython,
matplotlib and numpy. I used py2exe to create a windows binary of
about 15 Mb. Using py2app, the resulting .app is over 200 Mb!!
It seems to me that the issue here is that py2app bundles wx,
matplotlib and scipy entirely. In my py2exe setup.py script I have