--- a/eric6/Plugins/PluginSyntaxChecker.py Sun Apr 11 16:53:48 2021 +0200 +++ b/eric6/Plugins/PluginSyntaxChecker.py Sun Apr 11 18:45:10 2021 +0200 @@ -224,10 +224,9 @@ if menu: menu.removeAction(self.__projectAct) - if self.__projectBrowserMenu: - if self.__projectBrowserAct: - self.__projectBrowserMenu.removeAction( - self.__projectBrowserAct) + if self.__projectBrowserMenu and self.__projectBrowserAct: + self.__projectBrowserMenu.removeAction( + self.__projectBrowserAct) for editor in self.__editors: editor.showMenu.disconnect(self.__editorShowMenu)