：'MainFrame‘对象没有属性'm_textCtrl2’

Question

我就像这样

import wx
import gui
from xml.dom.minidom import parse

class MainFrame(gui.MainFrame):
    def __init__(self, parent):
        dom = parse("data.xml")
        data = dom.getElementById("album")
        self.m_textCtrl2.SetValue(data)

我在gui中定义了m_textCrtl2，这是主要原因。

if __name__ == "__main__":
    app = wx.App(False)
    mainFrame = MainFrame(None)
    app.SetTopWindow(mainFrame)
    mainFrame.Show()
    app.MainLoop()

和回溯

Traceback (most recent call last):
  File "CDBase.py", line 40, in <module>
    mainFrame = MainFrame(None)
  File "CDBase.py", line 16, in __init__
    self.m_textCtrl2.SetValue(data)
AttributeError: 'MainFrame' object has no attribute 'm_textCtrl2'

我是python的新手，所以我会感谢您的帮助:)

Answer 1

class MainFrame(gui.MainFrame):
    def __init__(self, parent):
        dom = parse("data.xml")
        data = dom.getElementById("album")
        self.m_textCtrl2.SetValue(data)

您没有调用超类的构造函数。你需要明确的称呼它。

class MainFrame(gui.MainFrame):
    def __init__(self, parent):
        super(MainFrame, self).__init__(whatever, arguments, but, not, self)
        dom = parse("data.xml")
        data = dom.getElementById("album")
        self.m_textCtrl2.SetValue(data)