I think I figured out how to make it work, but I don't know if it breaks anything. In conjunction with the change above, I also did this:
Changed custom_import.py line 49 from:
return self.std_python_importer(name, globals, locals, fromlist, level)
To this:
if sys.version_info[:2] == (2, 4):
return self.std_python_importer(name, globals, locals, fromlist)
else:
return self.std_python_importer(name, globals, locals, fromlist, level)

