使用Kivy拒绝了我的许可

Question

我正在尝试使用Kivy开发应用程序，但我的许可被拒绝。 我通过添加ppa并使用sudo apt-get在kivy网站上为xubuntu安装了推荐的方法。 当我运行该应用程序时，会显示GUI，但是当我按下应该返回一些文本的按钮时，GUI关闭，并且我收到一个错误，我的类“ MITMs1”没有属性“ self”。 我也使用scapy，我使用的是python 2.7。

这是一个类似的问题https://i11.at/dwl/eos/kivy30.pdf但我的操作系统错误是

OSError: [Errno 13] Permission denied: '/dev/input/event5'

我的完整输出是

[INFO   ] [Logger      ] Record log in /home/ro/.kivy/logs/kivy_15-12-27_25.txt
[INFO   ] [Kivy        ] v1.9.0
[INFO   ] [Python      ] v2.7.6 (default, Jun 22 2015, 17:58:13) 
[GCC 4.8.2]
[INFO   ] [Image       ] Providers: img_tex, img_dds, img_gif, img_sdl2, img_pil (img_ffpyplayer ignored)
[INFO   ] [Factory     ] 173 symbols loaded
[INFO   ] [Text        ] Provider: sdl2
 WARNING: No route found for IPv6 destination :: (no default route?)
[INFO   ] [OSC         ] using <multiprocessing> for socket
[INFO   ] [Window      ] Provider: sdl2(['window_egl_rpi'] ignored)
[INFO   ] [GL          ] OpenGL version <3.0 Mesa 10.3.2>
[INFO   ] [GL          ] OpenGL vendor <Intel Open Source Technology Center>
[INFO   ] [GL          ] OpenGL renderer <Mesa DRI Intel(R) Bay Trail >
[INFO   ] [GL          ] OpenGL parsed version: 3, 0
[INFO   ] [GL          ] Shading version <1.30>
[INFO   ] [GL          ] Texture max size <8192>
[INFO   ] [GL          ] Texture max units <16>
[INFO   ] [Window      ] auto add sdl2 input provider
[INFO   ] [Window      ] virtual keyboard not allowed, single mode, not docked
[INFO   ] [GL          ] NPOT texture support is available
[INFO   ] [ProbeSysfs  ] device match: /dev/input/event5
[INFO   ] [MTD         ] Read event from </dev/input/event5>
[INFO   ] [Base        ] Start application main loop
 Exception in thread Thread-1:
 Traceback (most recent call last):
   File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
     self.run()
   File "/usr/lib/python2.7/threading.py", line 763, in run
     self.__target(*self.__args, **self.__kwargs)
   File "/usr/lib/python2.7/dist-packages/kivy/input/providers/mtdev.py", line 197, in _thread_run
     _device = Device(_fn)
   File "/usr/lib/python2.7/dist-packages/kivy/lib/mtdev.py", line 131, in __init__
     self._fd = os.open(filename, os.O_NONBLOCK | os.O_RDONLY)
 OSError: [Errno 13] Permission denied: '/dev/input/event5'

[INFO   ] [Base        ] Leaving application in progress...
 Traceback (most recent call last):
   File "skivy.py", line 76, in <module>
     MITMtool().run()
   File "/usr/lib/python2.7/dist-packages/kivy/app.py", line 824, in run
     runTouchApp()
   File "/usr/lib/python2.7/dist-packages/kivy/base.py", line 487, in runTouchApp
     EventLoop.window.mainloop()
   File "/usr/lib/python2.7/dist-packages/kivy/core/window/window_sdl2.py", line 539, in mainloop
     self._mainloop()
   File "/usr/lib/python2.7/dist-packages/kivy/core/window/window_sdl2.py", line 300, in _mainloop
     EventLoop.idle()
   File "/usr/lib/python2.7/dist-packages/kivy/base.py", line 330, in idle
     self.dispatch_input()
   File "/usr/lib/python2.7/dist-packages/kivy/base.py", line 315, in dispatch_input
     post_dispatch_input(*pop(0))
   File "/usr/lib/python2.7/dist-packages/kivy/base.py", line 281, in post_dispatch_input
     wid.dispatch('on_touch_up', me)
   File "_event.pyx", line 699, in kivy._event.EventDispatcher.dispatch (kivy/_event.c:6856)
   File "/usr/lib/python2.7/dist-packages/kivy/uix/behaviors.py", line 163, in on_touch_up
     self.dispatch('on_release')
   File "_event.pyx", line 695, in kivy._event.EventDispatcher.dispatch (kivy/_event.c:6815)
   File "_event.pyx", line 1168, in kivy._event.EventObservers.dispatch (kivy/_event.c:11690)
   File "_event.pyx", line 1052, in kivy._event.EventObservers._dispatch (kivy/_event.c:10730)
   File "/usr/lib/python2.7/dist-packages/kivy/lang.py", line 1465, in custom_callback
     exec(__kvlang__.co_value, idmap)
   File "<string>", line 23, in <module>
   File "skivy.py", line 64, in run_ifconfig
     + '[color=00ff00][i]{0}[/i][/color]'.format(self.ipv6) + '\n\n'
 AttributeError: 'MITMs1' object has no attribute 'self'

我的代码是

from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
from kivy.uix.button import Button
from kivy.uix.textinput import TextInput
from kivy.lang import Builder
from kivy.app import App
from scapy.all import *
from kivy.uix.scrollview import ScrollView
from kivy.uix.screenmanager import ScreenManager, Screen
from subprocess import check_output

Builder.load_string('''
<MITMs1>:
    BoxLayout:
        BoxLayout:
            orientation: 'vertical'
            id: client_box
            size_hint: 0.5, 1
            spacing: 10
            Label:
                id: device_lbl
                markup: True
                size_hint: 1, 1
                text: 'LABEL! :)'
            TextInput:
                id: iface_name
                size_hint: 1, .2
                text: 'eth0'
                multiline: False
            BoxLayout:
                Button:
                    size_hint: 1, .2
                    text: 'Run Ifconfig'
                    on_release: root.run_ifconfig()
        ScrollView:
            size_hint: 0.5, 1
            do_scroll_x: False
            BoxLayout:
                orientation: 'vertical'
                id: nodes
                size_hint: 1, None

            ''')

class MITMs1(Screen):
    def __init__(self, **kwargs):
        super(MITMs1, self).__init__(**kwargs)

        self.iface_name = self.ids['iface_name']
        self.device_lbl = self.ids['device_lbl']
        self.client_box = self.ids['client_box']
        self.nodes = self.ids['nodes']

    def run_ifconfig(self):

        self.ifconfig = subprocess.check_output(['ifconfig', self.iface_name.text])
        self.iface, self.my_ip, self.MAC, self.Bcast, self.Nmask, self.ipv6 = (self.ifconfig.split()[i] for i in (0, 6, 4, 7, 8, 11))
        self.device_lbl.text = ('[color=00ff00][i][b]My Device[/b][/i][/color]' + '\n\n' + 'Interface: '
        + '[color=00ff00][i]{0}[/i][/color]'.format(self.iface) + '\n\n' + 'IP: '
        + '[color=00ff00][i]{0}[/i][/color]'.format(self.my_ip[5:]) + '\n\n' + 'MAC: '
        + '[color=00ff00][i]{0}[/i][/color]'.format(self.self.MAC) + '\n\n' + 'Bcast: '
        + '[color=00ff00][i]{0}[/i][/color]'.format(self.Bcast[6:]) + '\n\n' + 'Nmask: '
        + '[color=00ff00][i]{0}[/i][/color]'.format(self.Nmask[5:]) + '\n\n' + 'IP: '
        + '[color=00ff00][i]{0}[/i][/color]'.format(self.ipv6) + '\n\n'
)


class MITMtool(App):
    def build(self):
        return sm

sm = ScreenManager()
sm.add_widget(MITMs1(name='MITMs1'))

if __name__=='__main__':
    MITMtool().run()

Answer 1

您在字符串构造的中间有format(self.self.MAC) 。 这就是为什么您会得到关于没有self.self的错误的self.self 。

输入错误并不重要，它仅来自奇异的查询您的输入设备以查看可用的设备。