Question

我正在尝试为linux中的mate-panel制作一个applet。我必须使用模块Window.py和Applet.py。我收到这个错误：

Traceback (most recent call last):
File "./Applet.py", line 37, in WindowButtonsAppletFactory
WindowButtonsApplet(applet)
File "./Applet.py", line 23, in WindowButtonsApplet
CloseButton.connect("Clicked",WindowActions().win_close(SelectedWindow))
File "WindowButtonsApplet/Window.py", line 23, in win_close
Window.close(Timestamp)
AttributeError: 'WindowActions' object has no attribute 'close'

** (Applet.py:2191): WARNING **: need to free the control here

而且我不知道为什么因为wnck的名字有一个名为close的属性。我要问的第二件事是，为什么每次调用它都需要初始化类。

以下代码来自： Applet.py

#!/bin/env python3

import gi
import Window

gi.require_version("Gtk","3.0")
gi.require_version("MatePanelApplet", "4.0")

from gi.repository import Gtk
from gi.repository import MatePanelApplet
from Window import *


def WindowButtonsApplet(applet):

    Box = Gtk.Box("Horizontal")

    CloseButton = Gtk.Button("x")
    MinButton = Gtk.Button("_")
    UmaximizeButton = Gtk.Button("[]")

    SelectedWindow = WindowActions().active_window()
    CloseButton.connect("Clicked",WindowActions().win_close(SelectedWindow))
    Box.pack_start(CloseButton)

    applet.add(Box)
    applet.show_all()

// Hack for transparent background

applet.set_background_widget(applet)

def WindowButtonsAppletFactory(applet, iid,data):
    if iid != "WindowButtonsApplet":
        return False

    WindowButtonsApplet(applet)

    return True

 //Mate panel procedure to load the applet on panel

 MatePanelApplet.Applet.factory_main("WindowButtonsAppletFactory", True,
                                    MatePanelApplet.Applet.__gtype__,
                                    WindowButtonsAppletFactory, None)

Window.py

#!/usr/bin/env python3

import time
import gi

gi.require_version("Gtk","3.0")
gi.require_version("Wnck","3.0")

from gi.repository import Gtk
from gi.repository import Wnck

class WindowActions:

DefaultScreen = Wnck.Screen.get_default()
DTimestamp = int(time.time())

def active_window(self,Screen=DefaultScreen): 
    Screen.force_update()
    self.ActiveWindow = Screen.get_active_window()
    return self.ActiveWindow

def win_close(Window,Timestamp=DTimestamp):
    Window.close(Timestamp)

def win_minimize(self,Window):
    Window.minimize()

def win_umaximize(self,Window):
    self.Window.maximize()

Answer 1

您错过了对self的引用：

def win_close(Window,Timestamp=DTimestamp):
    Window.close(Timestamp)

因此传递WindowActions实例，该实例未定义close方法，并且您实际选择的窗口将传递给Timestamp。

将self添加到您的方法定义中，并且应该解决它。

将作为对象的默认参数添加到类

1 个答案: