diff options
| -rw-r--r-- | Lib/tkinter/ttk.py | 12 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Library/2017-08-08-14-44-37.bpo-31135.HH94xR.rst | 4 |
2 files changed, 12 insertions, 4 deletions
diff --git a/Lib/tkinter/ttk.py b/Lib/tkinter/ttk.py index 3ecc004..e1a965e 100644 --- a/Lib/tkinter/ttk.py +++ b/Lib/tkinter/ttk.py @@ -1543,11 +1543,12 @@ class LabeledScale(Frame): try: self._variable.trace_vdelete('w', self.__tracecb) except AttributeError: - # widget has been destroyed already pass else: del self._variable - Frame.destroy(self) + super().destroy() + self.label = None + self.scale = None def _adjust(self, *args): @@ -1644,5 +1645,8 @@ class OptionMenu(Menubutton): def destroy(self): """Destroy this widget and its associated variable.""" - del self._variable - Menubutton.destroy(self) + try: + del self._variable + except AttributeError: + pass + super().destroy() diff --git a/Misc/NEWS.d/next/Library/2017-08-08-14-44-37.bpo-31135.HH94xR.rst b/Misc/NEWS.d/next/Library/2017-08-08-14-44-37.bpo-31135.HH94xR.rst new file mode 100644 index 0000000..60068fb --- /dev/null +++ b/Misc/NEWS.d/next/Library/2017-08-08-14-44-37.bpo-31135.HH94xR.rst @@ -0,0 +1,4 @@ +ttk: fix the destroy() method of LabeledScale and OptionMenu classes. +Call the parent destroy() method even if the used attribute doesn't +exist. The LabeledScale.destroy() method now also explicitly clears label and +scale attributes to help the garbage collector to destroy all widgets. |