Reduce Python specific code in swig header.
Reduce Python specific code in swig header.

Tatsh/libplist,libimobiledevice-win32/libplist,libimobiledevice/libplist,libimobiledevice/libplist,Tatsh/libplist,Tatsh/libplist,libimobiledevice-win32/libplist,libimobiledevice/libplist,Tatsh/libplist,libimobiledevice-win32/libplist,libimobiledevice-win32/libplist