jupyter

packages/python/swig/prolog/yapi.yap

@@ -79,16 +79,14 @@ python_query( Caller, String, Bindings ) :-
 	       output(Caller, Bindings).
 
 output( Caller, Bindings ) :-
-fail,
-    Answer := {},
-   % start_low_level_trace,
+    Caller.answer := {},
+ /*  % start_low_level_trace,
     foldl(ground_dict(answer), Bindings, [], Ts),
     term_variables( Ts, Hidden),
     foldl(bv, Hidden , 0, _),
-    maplist(into_dict(Answer),Ts),
-    Caller.answer := Answer,
-    fail.
-    
+  */  maplist(into_dict(answer),Bindings),
+  := print(answer)},
+    Caller.answer := answer.
     
 output( _, Bindings ) :-
     write_query_answer( Bindings ),

packages/python/swig/yap4py/yapi.py

@@ -1,4 +1,5 @@
 import readline
+import copy
 from yap4py.yap import *
 from yap4py.systuples import *
 from os.path import join, dirname
@@ -76,11 +77,10 @@ class Query (YAPQuery):
         return self.port == "fail" or self.port == "exit"
 
     def __next__(self):
-        self.answer = {}
         if self.port == "fail" or self.port == "exit":
             raise StopIteration()
         if self.next():
-            return self.answer
+            return copy.deepcopy(self.answer)
         raise StopIteration()
  
 def name( name, arity):