 Traceback (most recent call last):

 "E:\dev\prs\kivy\examples\widgets\colorpicker.py", line 230, in <module>
MainApp().run()

 "E:\dev\prs\kivy\kivy\app.py", line 828, in run
runTouchApp()

 "E:\dev\prs\kivy\kivy\base.py", line 487, in runTouchApp
EventLoop.window.mainloop()

 "E:\dev\prs\kivy\kivy\core\window\window_sdl2.py", line 622, in mainloop
self._mainloop()

 "E:\dev\prs\kivy\kivy\core\window\window_sdl2.py", line 365, in _mainloop
EventLoop.idle()

 "E:\dev\prs\kivy\kivy\base.py", line 330, in idle
self.dispatch_input()

 "E:\dev\prs\kivy\kivy\base.py", line 315, in dispatch_input
post_dispatch_input(*pop(0))

 "E:\dev\prs\kivy\kivy\base.py", line 281, in post_dispatch_input
wid.dispatch('on_touch_up', me)

 "kivy\_event.pyx", line 718, in kivy._event.EventDispatcher.dispatch (kivy\_event.c:7726)

 "E:\dev\prs\kivy\kivy\uix\behaviors\button.py", line 187, in on_touch_up
self.dispatch('on_release')

 "kivy\_event.pyx", line 714, in kivy._event.EventDispatcher.dispatch (kivy\_event.c:7681)

 "kivy\_event.pyx", line 1224, in kivy._event.EventObservers.dispatch (kivy\_event.c:13524)

 "kivy\_event.pyx", line 1108, in kivy._event.EventObservers._dispatch (kivy\_event.c:12356)

 "E:\dev\prs\kivy\kivy\lang\builder.py", line 64, in custom_callback
exec(__kvlang__.co_value, idmap)

 "<string>", line 89, in <module> AttributeError: 'NoneType' object has no attribute 'canvas'
Traceback (most recent call last):


 "<stdin>", line 1, in <module>


 "C:\Users\u5en\ArqProg\Anaconda3\lib\site-packages\pandas\core\generic.py", line 2246, in to_clipboard

clipboards.to_clipboard(self, excel=excel, sep=sep, **kwargs)


 "C:\Users\u5en\ArqProg\Anaconda3\lib\site-packages\pandas\io\clipboards.py", line 117, in to_clipboard

objstr = obj.to_string(**kwargs)
TypeError: to_string() got an unexpected keyword argument 'line_terminator'
