problem on Mac OS 10.10

[froehlichh]

when trying to install (make app) o Mac OS I get:
creating build/bdist.macosx-10.6-intel/python2.7-standalone/app/lib-dynload
creating build/bdist.macosx-10.6-intel/python2.7-standalone/app/Frameworks
Traceback (most recent call last):
File "setup.py", line 30, in
setup(*_extra_options)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/core.py", line 151, in setup
dist.run_commands()
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 953, in run_commands
self.run_command(cmd)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 972, in run_command
cmd_obj.run()
File "/Users/hannes/Downloads/sommer-loxodo-6c56efb/.eggs/py2app-0.9-py2.7.egg/py2app/build_app.py", line 659, in run
self._run()
File "/Users/hannes/Downloads/sommer-loxodo-6c56efb/.eggs/py2app-0.9-py2.7.egg/py2app/build_app.py", line 865, in run
self.run_normal()
File "/Users/hannes/Downloads/sommer-loxodo-6c56efb/.eggs/py2app-0.9-py2.7.egg/py2app/build_app.py", line 939, in run_normal
mf = self.get_modulefinder()
File "/Users/hannes/Downloads/sommer-loxodo-6c56efb/.eggs/py2app-0.9-py2.7.egg/py2app/build_app.py", line 814, in get_modulefinder
debug=debug,
File "build/bdist.macosx-10.6-intel/egg/modulegraph/find_modules.py", line 341, in find_modules
File "build/bdist.macosx-10.6-intel/egg/modulegraph/find_modules.py", line 266, in find_needed_modules
TypeError: 'NoneType' object has no attribute 'getitem'
make: ** [app] Error 1

I've installed wxpython from here: https://www.python.org/getit/ (it's version 2.7.10 at present).

Are there any other packages I need to install?

Thanks!!