Kivy 按钮小部件：属性错误，没有属性 'fbind'
Kivy Button widget : Attribute Error, has no attribute 'fbind'
两三个小时以来，我一直在努力寻找问题的解决方案，但我就是找不到问题所在，确切地说，即使在 SO 或 Kivy 上查看其他用户的问题时也是如此文档。
我目前正在网上学习一些教程，并开始尝试 this simple one
我的代码与他的不完全匹配，但即使在复制本教程的确切代码作为测试时，我也得到了完全相同的错误，与 Kivy 中的 Button 小部件相关：
AttributeError: 'Button' object has no attribute 'fbind'
这可能与某种安装问题有关吗？谁能帮我解决这个问题？
[INFO ] Kivy v1.8.0
[INFO ] [Logger ] Record log in C:\Users\NoirFluo\.kivy\logs\kivy_17-03-01_64.txt
[INFO ] [Factory ] 157 symbols loaded
[DEBUG ] [Cache ] register <kv.lang> with limit=None, timeout=Nones
[DEBUG ] [Cache ] register <kv.image> with limit=None, timeout=60s
[DEBUG ] [Cache ] register <kv.atlas> with limit=None, timeout=Nones
[INFO ] [Image ] Providers: img_tex, img_dds, img_pygame, img_pil, img_gif
[DEBUG ] [Cache ] register <kv.texture> with limit=1000, timeout=60s
[DEBUG ] [Cache ] register <kv.shader> with limit=1000, timeout=3600s
[DEBUG ] [App ] Loading kv <C:/Users/NoirFluo/Desktop/Python/Kivy/TestProblemButton\screens.kv>
[DEBUG ] [Window ] Ignored <egl_rpi> (import error)
[INFO ] [Window ] Provider: pygame(['window_egl_rpi'] ignored)
[DEBUG ] [Window ] Display driver windib
[DEBUG ] [Window ] Actual window size: 800x600
[DEBUG ] [Window ] Actual color bits r8 g8 b8 a8
[DEBUG ] [Window ] Actual depth bits: 24
[DEBUG ] [Window ] Actual stencil bits: 8
[DEBUG ] [Window ] Actual multisampling samples: 2
[INFO ] [GL ] OpenGL version <4.5.13464 Compatibility Profile Context 21.19.407.0>
[INFO ] [GL ] OpenGL vendor <ATI Technologies Inc.>
[INFO ] [GL ] OpenGL renderer <AMD Radeon HD 7800 Series>
[INFO ] [GL ] OpenGL parsed version: 4, 5
[INFO ] [GL ] Shading version <4.50>
[INFO ] [GL ] Texture max size <16384>
[INFO ] [GL ] Texture max units <32>
[DEBUG ] [Shader ] Fragment compiled successfully
[DEBUG ] [Shader ] Vertex compiled successfully
[DEBUG ] [ImagePygame ] Load <C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\data\glsl\default.png>
[INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
[INFO ] [Text ] Provider: pygame
GLEW initialization succeeded
Traceback (most recent call last):
File "<ipython-input-1-414e3aba4aa1>", line 1, in <module>
runfile('C:/Users/NoirFluo/Desktop/Python/Kivy/TestProblemButton/main.py', wdir='C:/Users/NoirFluo/Desktop/Python/Kivy/TestProblemButton')
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\spyder\utils\site\sitecustomize.py", line 866, in runfile
execfile(filename, namespace)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\spyder\utils\site\sitecustomize.py", line 87, in execfile
exec(compile(scripttext, filename, 'exec'), glob, loc)
File "C:/Users/NoirFluo/Desktop/Python/Kivy/TestProblemButton/main.py", line 26, in <module>
ScreensApp().run()
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\app.py", line 766, in run
root = self.build()
File "C:/Users/NoirFluo/Desktop/Python/Kivy/TestProblemButton/main.py", line 23, in build
return Manager()
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\uix\screenmanager.py", line 791, in __init__
super(ScreenManager, self).__init__(**kwargs)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\uix\floatlayout.py", line 66, in __init__
super(FloatLayout, self).__init__(**kwargs)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\uix\layout.py", line 63, in __init__
super(Layout, self).__init__(**kwargs)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\uix\widget.py", line 173, in __init__
Builder.apply(self)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\lang.py", line 1566, in apply
self._apply_rule(widget, rule, rule)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\lang.py", line 1672, in _apply_rule
self.apply(child)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\lang.py", line 1566, in apply
self._apply_rule(widget, rule, rule)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\lang.py", line 1670, in _apply_rule
child = cls(__no_builder=True)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\uix\behaviors\button.py", line 83, in __init__
self.fbind('state', self.cancel_event)
AttributeError: 'Button' object has no attribute 'fbind'`
这是 screens.kv 文件中的代码：
#:kivy 1.8.0
<ScreenOne>:
Button:
text: "On SCREEN 1 >> Go to Screen 2"
on_press: root.manager.current = "screen2"
<ScreenTwo>:
Button:
text: "On SCREEN 2 >> Go to Screen 3"
on_press: root.manager.current = "screen3"
<ScreenThree>:
Button:
text: "On SCREEN 3 >> Go to Screen 1"
on_press: root.manager.current = "screen1"
<Manager>:
id: screen_manager
screen_one: screen_one
screen_two: screen_two
screen_three: screen_three
ScreenOne:
id: screen_one
name: "screen1"
manager: screen_manager
ScreenTwo:
id: screen_two
name: "screen2"
manager: screen_manager
ScreenThree:
id: screen_three
name: "screen3"
manager: screen_manager
这里是main.py的代码：
# -*- coding: utf-8 -*-
from kivy.app import App
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.properties import ObjectProperty
class ScreenThree(Screen):
pass
class ScreenTwo(Screen):
pass
class ScreenOne(Screen):
pass
class Manager(ScreenManager):
screen_one = ObjectProperty(None)
screen_two = ObjectProperty(None)
screen_three = ObjectProperty(None)
class ScreensApp(App):
def build(self):
return Manager()
if __name__ == "__main__":
ScreensApp().run()
edit : 嗯，编辑把我的 "Hello, folks !" 吃了： 大家好 ！ ^^'
Kivy 1.8.0 是个恐龙，很快就会有一个比当前的旧稳定版 (1.9.1) 更新的版本。
我试过你的代码，它工作正常，而且，我相信它甚至在 1.8.0 上也能正常工作（不确定，如果需要，请检查已关闭 issues）。
现在您可以执行以下操作之一：
从您要使用的标签完全重新安装您的 Kivy 安装（如果它是 1.8.0，我们就去做吧）
安装稳定版
安装最新的 Kivy 版本
勾选instructions on how to do so and if it's not enough or too hard, use this installer。请注意，这个 不是！ 和你现在的 kivy.bat 一样（1.8.0 包中有这样的文件，现在不存在了），所以它不能替代旧的。
两三个小时以来，我一直在努力寻找问题的解决方案，但我就是找不到问题所在，确切地说，即使在 SO 或 Kivy 上查看其他用户的问题时也是如此文档。
我目前正在网上学习一些教程，并开始尝试 this simple one
我的代码与他的不完全匹配，但即使在复制本教程的确切代码作为测试时，我也得到了完全相同的错误，与 Kivy 中的 Button 小部件相关：
AttributeError: 'Button' object has no attribute 'fbind'
这可能与某种安装问题有关吗？谁能帮我解决这个问题？
[INFO ] Kivy v1.8.0
[INFO ] [Logger ] Record log in C:\Users\NoirFluo\.kivy\logs\kivy_17-03-01_64.txt
[INFO ] [Factory ] 157 symbols loaded
[DEBUG ] [Cache ] register <kv.lang> with limit=None, timeout=Nones
[DEBUG ] [Cache ] register <kv.image> with limit=None, timeout=60s
[DEBUG ] [Cache ] register <kv.atlas> with limit=None, timeout=Nones
[INFO ] [Image ] Providers: img_tex, img_dds, img_pygame, img_pil, img_gif
[DEBUG ] [Cache ] register <kv.texture> with limit=1000, timeout=60s
[DEBUG ] [Cache ] register <kv.shader> with limit=1000, timeout=3600s
[DEBUG ] [App ] Loading kv <C:/Users/NoirFluo/Desktop/Python/Kivy/TestProblemButton\screens.kv>
[DEBUG ] [Window ] Ignored <egl_rpi> (import error)
[INFO ] [Window ] Provider: pygame(['window_egl_rpi'] ignored)
[DEBUG ] [Window ] Display driver windib
[DEBUG ] [Window ] Actual window size: 800x600
[DEBUG ] [Window ] Actual color bits r8 g8 b8 a8
[DEBUG ] [Window ] Actual depth bits: 24
[DEBUG ] [Window ] Actual stencil bits: 8
[DEBUG ] [Window ] Actual multisampling samples: 2
[INFO ] [GL ] OpenGL version <4.5.13464 Compatibility Profile Context 21.19.407.0>
[INFO ] [GL ] OpenGL vendor <ATI Technologies Inc.>
[INFO ] [GL ] OpenGL renderer <AMD Radeon HD 7800 Series>
[INFO ] [GL ] OpenGL parsed version: 4, 5
[INFO ] [GL ] Shading version <4.50>
[INFO ] [GL ] Texture max size <16384>
[INFO ] [GL ] Texture max units <32>
[DEBUG ] [Shader ] Fragment compiled successfully
[DEBUG ] [Shader ] Vertex compiled successfully
[DEBUG ] [ImagePygame ] Load <C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\data\glsl\default.png>
[INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
[INFO ] [Text ] Provider: pygame
GLEW initialization succeeded
Traceback (most recent call last):
File "<ipython-input-1-414e3aba4aa1>", line 1, in <module>
runfile('C:/Users/NoirFluo/Desktop/Python/Kivy/TestProblemButton/main.py', wdir='C:/Users/NoirFluo/Desktop/Python/Kivy/TestProblemButton')
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\spyder\utils\site\sitecustomize.py", line 866, in runfile
execfile(filename, namespace)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\spyder\utils\site\sitecustomize.py", line 87, in execfile
exec(compile(scripttext, filename, 'exec'), glob, loc)
File "C:/Users/NoirFluo/Desktop/Python/Kivy/TestProblemButton/main.py", line 26, in <module>
ScreensApp().run()
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\app.py", line 766, in run
root = self.build()
File "C:/Users/NoirFluo/Desktop/Python/Kivy/TestProblemButton/main.py", line 23, in build
return Manager()
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\uix\screenmanager.py", line 791, in __init__
super(ScreenManager, self).__init__(**kwargs)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\uix\floatlayout.py", line 66, in __init__
super(FloatLayout, self).__init__(**kwargs)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\uix\layout.py", line 63, in __init__
super(Layout, self).__init__(**kwargs)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\uix\widget.py", line 173, in __init__
Builder.apply(self)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\lang.py", line 1566, in apply
self._apply_rule(widget, rule, rule)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\lang.py", line 1672, in _apply_rule
self.apply(child)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\lang.py", line 1566, in apply
self._apply_rule(widget, rule, rule)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\lang.py", line 1670, in _apply_rule
child = cls(__no_builder=True)
File "C:\Users\NoirFluo\Anaconda2\lib\site-packages\kivy\uix\behaviors\button.py", line 83, in __init__
self.fbind('state', self.cancel_event)
AttributeError: 'Button' object has no attribute 'fbind'`
这是 screens.kv 文件中的代码：
#:kivy 1.8.0
<ScreenOne>:
Button:
text: "On SCREEN 1 >> Go to Screen 2"
on_press: root.manager.current = "screen2"
<ScreenTwo>:
Button:
text: "On SCREEN 2 >> Go to Screen 3"
on_press: root.manager.current = "screen3"
<ScreenThree>:
Button:
text: "On SCREEN 3 >> Go to Screen 1"
on_press: root.manager.current = "screen1"
<Manager>:
id: screen_manager
screen_one: screen_one
screen_two: screen_two
screen_three: screen_three
ScreenOne:
id: screen_one
name: "screen1"
manager: screen_manager
ScreenTwo:
id: screen_two
name: "screen2"
manager: screen_manager
ScreenThree:
id: screen_three
name: "screen3"
manager: screen_manager
这里是main.py的代码：
# -*- coding: utf-8 -*-
from kivy.app import App
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.properties import ObjectProperty
class ScreenThree(Screen):
pass
class ScreenTwo(Screen):
pass
class ScreenOne(Screen):
pass
class Manager(ScreenManager):
screen_one = ObjectProperty(None)
screen_two = ObjectProperty(None)
screen_three = ObjectProperty(None)
class ScreensApp(App):
def build(self):
return Manager()
if __name__ == "__main__":
ScreensApp().run()
edit : 嗯，编辑把我的 "Hello, folks !" 吃了： 大家好 ！ ^^'
Kivy 1.8.0 是个恐龙，很快就会有一个比当前的旧稳定版 (1.9.1) 更新的版本。
我试过你的代码，它工作正常，而且，我相信它甚至在 1.8.0 上也能正常工作（不确定，如果需要，请检查已关闭 issues）。
现在您可以执行以下操作之一：
从您要使用的标签完全重新安装您的 Kivy 安装（如果它是 1.8.0，我们就去做吧）
安装稳定版
安装最新的 Kivy 版本
勾选instructions on how to do so and if it's not enough or too hard, use this installer。请注意，这个 不是！ 和你现在的 kivy.bat 一样（1.8.0 包中有这样的文件，现在不存在了），所以它不能替代旧的。