Python
http://www.python.org/download/
Eclipse
http://blog.msmhrt.jp/2010/10/mac-os-xeclipse-361pydev1.html
http://www.eclipse.org/downloads/packages/eclipse-classic-361/heliossr1
PyDev
http://pydev.org/manual_101_install.html
PyInstaller
http://www.pyinstaller.org/
wxPython
http://www.wxpython.org/download.php
wxFormBuilder
http://wxformbuilder.org/
PIL
http://www.pythonware.com/products/pil/
OpenCV
http://opencv.willowgarage.com/wiki/Welcome
Numpy
http://numpy.scipy.org/
Scipy
http://www.scipy.org/
matplotlib
http://matplotlib.sourceforge.net/
Sage
http://sage.scipy.org/sage/
Sympy
http://code.google.com/p/sympy/