TypeError:__ init __()得到了一个意外的关键字参数'__no_builder'Kivy

Question

我正在尝试添加一个def __init__(self)代码,当我运行kivy程序时,我得到了这个:

Traceback (most recent call last):
   File "/Users/acrobat/Desktop/dive/test.py", line 78, in <module>
     ''')
   File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/kivy/lang.py", line 1921, in load_string
     self._apply_rule(widget, parser.root, parser.root)
   File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/kivy/lang.py", line 2085, in _apply_rule
     self._apply_rule(child, crule, rootrule)
   File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/kivy/lang.py", line 2082, in _apply_rule
     child = cls(__no_builder=False)
 TypeError: __init__() got an unexpected keyword argument '__no_builder'

这是代码:它def __init__(self)是一个PlayerImage类,它是我试图在屏幕上移动的小部件

class PlayerImage(Image):
    angle = NumericProperty(0)

    def __init__(self):
        super().__init__()


    def on_touch_down(self, touch):
        # self.currentstate = self.states["person.zip/"]
        Animation.cancel_all(self)
        angle = degrees(atan2(touch.y - self.center_y,
                              touch.x - self.center_x))

        Animation(center=touch.pos, angle=angle).start(self)
        # self.currentstate = self.states["personred/rest.png/"]

我没有使用kv lang文件,所以这里是我的构建代码:

root = Builder.load_string('''
Widget:
    Widget:
        PlayerImage:
            source: './rpgArt/person.zip'
            allow_stretch: True
            keep_ratio: True
        PlayerImage2:
            source: './rpgArt/personred.zip'
            allow_stretch: True
            keep_ratio: True
''')

编辑:添加kivy标签

Answer 1

更换:

def __init__(self):
    super().__init__()

附:

def __init__(self, **kwargs): 
    super(PlayerImage, self).__init__(**kwargs)

您正在创建对象的子类,而不传递Kivy所需的关键字参数.

我也不认为__init__()Kivy需要它,我认为它可能会从父母那里自动查找,但我不确定.

编辑:就像Kevin在评论中所说,因为你使用的是Python 3,你可以使用零参数super()同样有效.