same change in toric varieties code

src/sage/schemes/toric/variety.py

@@ -1197,7 +1197,7 @@ def inject_coefficients(self, scope=None, verbose=True):
             while True:
                 scope = sys._getframe(depth).f_globals
                 if (scope["__name__"] == "__main__"
-                    and scope["__package__"] is None):
+                    and scope.get("__package__", None) is None):
                     break
                 depth += 1
         try: