Error Importing Panda3D in OS X

Panda works out of the box with Apple’s standard copy of Python, so there is no need to use ppython. In fact, ppython is just a link to Apple’s standard copy of Python.

What I’m guessing you did is install a custom version of Python 2.7 alongside the version of Python 2.7 that is already on your system, one that is incompatible with Panda’s build.