我正在尝试调用 init 方法,它是函数的父级。我可能正在做一些显然很愚蠢的事情,但是我无法弄清楚。当我收到以下代码时,我得到一个错误:
from kivy.app import App
from kivy.uix.widget import Widget
from kivy.uix.button import Button
from kivy.properties import NumericProperty, ReferenceListProperty, ObjectProperty, ListProperty
from kivy.clock import Clock
from kivy.graphics import Color
class FieldCommand(Widget):
def __init__(self, **kwargs):
super(FieldCommand, self).__init__(**kwargs)
self.myBoard = Board(col=2, rows=2)
for c in range(4):
self.add_widget(Button(text = c))
class Board(Widget):
def __init__(self, **kwargs):
super(Board, self).__init__(**kwargs)
class FieldCommandApp(App):
def build(self):
return FieldCommand()
if __name__ == '__main__':
FieldCommandApp().run()
具体地说,我的错误是:
File "/Users/.../PycharmProjects/FieldCommand/venv/lib/python3.7/site-packages/kivy/uix/widget.py", line 350, in __init__
super(Widget, self).__init__(**kwargs)
File "kivy/_event.pyx", line 243, in kivy._event.EventDispatcher.__init__
TypeError: object.__init__() takes exactly one argument (the instance to initialize
) 我在跟踪示例here:
class Container(BoxLayout):
def __init__(self, **kwargs):
super(Container, self).__init__(**kwargs)
self.previous_text = open(self.kv_file).read()
parser = Parser(content=self.previous_text)
widget = Factory.get(parser.root.name)()
Builder._apply_rule(widget, parser.root, parser.root)
self.add_widget(widget)
为什么我的应用程序出现错误?
答案 0 :(得分:1)
您对self.myBoard = Board(col=2, rows=2)
的呼叫包括kwargs
和col
的{{1}},这些呼叫已传递到rows
Widget
,但不接受矮人因此,解决方法是提取__init__()
类中的kwargs
。您可以这样简单地在Board
类中添加Properties
:
Board