GridFlow allows to create classes directly in pd's main namespace, that is, through the objectmaker receive-symbol. in contrast, with pyext, you go thru [py].
Ok, that's interesting... i'll have to look into it
Does pyext support definition of GUI objects through t_widgetbehavior ? Because GridFlow/Ruby supports it and I have two or three externals written using it already (though not really debugged, sorry...).
py/pyext will never support PD GUI objects (from my side at least)
best greetings, Thomas