--- a/Helpviewer/HelpWindow.py Wed May 16 19:35:41 2018 +0200 +++ b/Helpviewer/HelpWindow.py Fri May 18 18:31:14 2018 +0200 @@ -2289,7 +2289,7 @@ try: browserIndex = HelpWindow.helpwindows.index(self) - if not self.__fromEric and len(HelpWindow.helpwindows): + if not self.fromEric and len(HelpWindow.helpwindows): if browserIndex == 0: if len(HelpWindow.helpwindows) > 1: # first window will be deleted