This is a real problem as open-source LMS are all in PHP, with the exception of Sakai which is in Java.
As I've written a LMS which tries to be compatible with SCORM I can say that it's not a small work to create a SCORM implementation.
The only project in Python I know is Cloud Course, created by Google on GAE (http://code.google.com/p/cloudcourse/)
You can also use Rustici's SCORM Cloud with Python (https://github.com/RusticiSoftware/SCORMCloud_PythonLibrary)