[det]py_func(+Module, 
+Function, -Return)
[det]py_func(+Module, 
+Function, -Return, +Options)Call Python Function in Module. The SWI-Prolog 
implementation is equivalent to py_call(Module:Function, Return). 
See py_call/2 for details.
- Compatibility
 - PIP. See py_call/2 for notes. Note 
that, as this implementation is based on py_call/2, Function 
can use chaining, e.g., 
py_func(sys, path:append(dir), Return) 
is accepted by this implementation, but not portable.