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python-3.x - Kivy 无法 mainApp.run()

问题描述

今天我的 Kivy 应用程序突然不再工作而我没有任何改变......可能是由于新版本的 Kivy 破坏了某些东西？有什么猜测吗？

以下是看似导致错误的几行代码：

class MemppApp(App):


    def build(self):        
        curdir = dirname(__file__)
        self.IDdisplayed=1
        mainDisplay = affichage( )
        return mainDisplay

if __name__ == '__main__':
    MemppApp().run() #here is the line 1308 it's complaining about...

这是启动主应用程序的一行。

这是我的输出：

[INFO   ] [Logger      ] Record log in /home/vince/.kivy/logs/kivy_20-12-27_5.txt
[INFO   ] [Kivy        ] v2.0.0
[INFO   ] [Kivy        ] Installed at "/usr/lib/python3/dist-packages/kivy/__init__.py"
[INFO   ] [Python      ] v3.8.5 (default, Jul 28 2020, 12:59:40) 
[GCC 9.3.0]
[INFO   ] [Python      ] Interpreter at "/usr/bin/python3"
[INFO   ] [Factory     ] 186 symbols loaded
[INFO   ] [Image       ] Providers: img_tex, img_dds, img_sdl2, img_pil (img_ffpyplayer ignored)
[INFO   ] [Text        ] Provider: pil(['text_sdl2'] ignored)
[INFO   ] [Window      ] Provider: sdl2
[INFO   ] [GL          ] Using the "OpenGL" graphics system
[INFO   ] [GL          ] Backend used <sdl2>
[INFO   ] [GL          ] OpenGL version <b'4.6 (Compatibility Profile) Mesa 20.0.8'>
[INFO   ] [GL          ] OpenGL vendor <b'Intel'>
[INFO   ] [GL          ] OpenGL renderer <b'Mesa Intel(R) UHD Graphics 620 (KBL GT2)'>
[INFO   ] [GL          ] OpenGL parsed version: 4, 6
[INFO   ] [GL          ] Shading version <b'4.60'>
[INFO   ] [GL          ] Texture max size <16384>
[INFO   ] [GL          ] Texture max units <32>
[INFO   ] [Window      ] auto add sdl2 input provider
[INFO   ] [Window      ] virtual keyboard not allowed, single mode, not docked
[INFO   ] [AudioGstplayer] Using Gstreamer 1.16.2.0
[INFO   ] [Audio       ] Providers: audio_gstplayer, audio_sdl2 (audio_ffpyplayer ignored)
 Traceback (most recent call last):
   File "/home/vince/Documents/programmes/Mempp/main.py", line 1308, in <module>
     MemppApp().run()
   File "/usr/lib/python3/dist-packages/kivy/app.py", line 949, in run
     self._run_prepare()
   File "/usr/lib/python3/dist-packages/kivy/app.py", line 918, in _run_prepare
     self.load_kv(filename=self.kv_file)
   File "/usr/lib/python3/dist-packages/kivy/app.py", line 691, in load_kv
     root = Builder.load_file(rfilename)
   File "/usr/lib/python3/dist-packages/kivy/lang/builder.py", line 306, in load_file
     return self.load_string(data, **kwargs)
   File "/usr/lib/python3/dist-packages/kivy/lang/builder.py", line 404, in load_string
     widget = Factory.get(parser.root.name)(__no_builder=True)
   File "/home/vince/Documents/programmes/Mempp/main.py", line 1126, in __init__
     self.menu = Menu( self.configChange, self.searchPage)
   File "/home/vince/Documents/programmes/Mempp/main.py", line 719, in __init__
     self.sliders = slidersFreq()
   File "/home/vince/Documents/programmes/Mempp/main.py", line 777, in __init__
     self.loadSliders()
   File "/home/vince/Documents/programmes/Mempp/main.py", line 808, in loadSliders
     s = Slider( min=0,
   File "/usr/lib/python3/dist-packages/kivy/uix/widget.py", line 350, in __init__
     super(Widget, self).__init__(**kwargs)
   File "kivy/_event.pyx", line 245, in kivy._event.EventDispatcher.__init__
 TypeError: object.__init__() takes exactly one argument (the instance to initialize)

标签： python-3.xkivy

解决方案

此错误意味着您正在传递一个类不期望/处理的参数，因此它通过 传递给超类super，然后它们依次传递。当它达到 时object，将引发此错误。

不可能更具体，因为您没有提供最小的可运行示例或相关代码。请注意，回溯追踪到您未在此处发布的 main.py 中的代码。

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