python: exclude the embedded PyCXX from krazy checks
python: exclude the embedded PyCXX from krazy checks

Otherwise the local copy will get local changes, and diverge from the
upstream PyCXX.  The joy of embedded copies...

KDE/kross-interpreters,KDE/kross-interpreters,KDE/kross-interpreters,KDE/kross-interpreters,KDE/kross-interpreters,KDE/kross-interpreters