RPython does not like file object
RPython does not like file object

We use file as stream from the rlib.

smarr/PySOM,smarr/RTruffleSOM,SOM-st/PySOM,smarr/PySOM,smarr/RTruffleSOM,SOM-st/RPySOM,SOM-st/RPySOM,SOM-st/RTruffleSOM,SOM-st/RTruffleSOM,SOM-st/PySOM