kivymd object .__ init __仅接受一个参数要初始化的实例

如何解决kivymd object .__ init __仅接受一个参数要初始化的实例

我正在尝试构建youtube视频下载器，但遇到问题并遇到了奇怪的错误，我怎么做呢？我认为我的代码看起来还不错，但是出了点问题，我会尽力而为，但是我无法弄清楚！

请帮助我-

错误

    Traceback (most recent call last):
   File "/home/rohit/Desktop/Youtube_downloader/main.py",line 84,in <module>
     Itube().run()
   File "/home/rohit/Desktop/Youtube_downloader/main.py",line 38,in __init__
     self.file_manager = MDFileManager(
   File "/home/rohit/Desktop/Youtube_downloader/env/lib/python3.8/site-packages/kivymd/uix/filemanager.py",line 403,in __init__
     super().__init__(**kwargs)
   File "/home/rohit/Desktop/Youtube_downloader/env/lib/python3.8/site-packages/kivymd/theming.py",line 907,in __init__
     super().__init__(**kwargs)
   File "/home/rohit/Desktop/Youtube_downloader/env/lib/python3.8/site-packages/kivy/uix/floatlayout.py",line 65,in __init__
     super(FloatLayout,self).__init__(**kwargs)
   File "/home/rohit/Desktop/Youtube_downloader/env/lib/python3.8/site-packages/kivy/uix/layout.py",line 76,in __init__
     super(Layout,self).__init__(**kwargs)
   File "/home/rohit/Desktop/Youtube_downloader/env/lib/python3.8/site-packages/kivymd/uix/behaviors/backgroundcolorbehavior.py",line 150,in __init__
     super().__init__(**kwargs)
   File "/home/rohit/Desktop/Youtube_downloader/env/lib/python3.8/site-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)

main.py

from kivymd.app import MDApp
from kivy.lang import Builder
from kivy.uix.screenmanager import Screen,ScreenManager
from kivy.core.window import Window
from kivymd.uix.filemanager import MDFileManager
from kivymd.toast import toast
from youtube_dl import kv


Window.size = (450,740)



class HomeScreen(Screen):
    pass

class SigninScreen(Screen):
    pass




sm = ScreenManager()
sm.add_widget(HomeScreen(name='homescreen'))
sm.add_widget(SigninScreen(name='signinscreen'))





class Itube(MDApp):
    def __init__(self,**kwargs):
        super().__init__(**kwargs)

        Window.bind(on_keyboard=self.events)

        self.manager_open = False
        self.file_manager = MDFileManager(
            exit_manager = self.exit_manager,self_path = self.select_path,preview = True,)


    def build(self):
        return Builder.load_string(kv)


    def file_manager_open(self):
        self.file_manager.show('/')  # output manager to the screen
        self.manager_open = True

    def select_path(self,path):
        '''It will be called when you click on the file name
        or the catalog selection button.

        :type path: str;
        :param path: path to the selected directory or file;
        '''

        self.exit_manager()
        toast(path)

    def exit_manager(self,*args):
        '''Called when the user reaches the root of the directory tree.'''

        self.manager_open = False
        self.file_manager.close()

    def events(self,instance,keyboard,keycode,text,modifiers):
        '''Called when buttons are pressed on the mobile device.'''

        if keyboard in (1001,27):
            if self.manager_open:
                self.file_manager.back()
        return True






if __name__ == "__main__":
    Itube().run()

youtube_dl.py

kv = """

ScreenManager:
    HomeScreen:
    SigninScreen:




<HomeScreen>:
    name: 'homescreen'



    MDBoxLayout:
        orientation: 'vertical'
        spacing: 20
        padding: 40


        MDTextFieldRound:
            hint_text: 'Url'
            multline: False
            normal_color: (1,1,100)
            color_active: (232/255,232/255,600)
            
        MDBoxLayout:
            orientation: 'horizontal'
            adaptive_size: True
            spacing: 22
            pos_hint: {'center_x': 0.5,'center_y': .99}

            MDToolbar:
                title: 'FileManager'
                left_action_items: [['menu',lambda x: None]]
                elevation: 10

            MDRaisedButton:
                text: 'Import from computer'
                icon: "folder"
                on_release: app.file_manager_open()
            
            MDRaisedButton:
                text: 'Import from itube cloud'
    

    

        


<SigninScreen>:
    name: 'signinscreen'


"""

或者您能解释一下构造大型kivymd应用程序的最佳方法。

解决方法

您在 self.file_manager 中写入了 const regex = /(?=(([01])\2{4}(?!\2)[01]))/g; [ "00000100000100","00000111110111" ].forEach(s => console.log(Array.from(s.matchAll(regex),m => m[1])));。它将是 self_path = self.select_path。另外，我不知道 select_path = self.select_path 有什么问题，可能是一个错误。 所以你的功能将是：

preview=True