anchor.diff:    if not Assigned(Obj) then
       Exit;
   
  -  with AppPython.Engine do
  +  with FEngine do
     begin
       if PyUnicode_Check(Obj) then
       begin
  
positive.code: var
    Num: Int64;
  begin
    with AppPython.Engine do
    begin
      if S='' then
        Result:= ReturnNone
  
negative.code:   Mode: integer;
  begin
    Result := nil;
    if not FInited then exit;
  
    if UseFileMode then
      Mode:= file_input
    else
      Mode:= eval_input;
  
    with FEngine do
    begin
      Traceback.Clear;
      CheckError(False);
  