Python下载酷狗音乐歌曲

最近想研究一下Python的图形界面，但是因为我的Python版本是2.7，没法用QT，所以试了试wxPython。效果还不错，虽然总体来说不如WPF好用和美观，但是做简单的应用程序足够了。

作为练习，写了一个酷狗的音乐下载器，上代码：

# -*- coding:utf8 -*-

import wx
import urllib

class App(wx.App):
    def OnInit(self):
        frame = wx.Frame(parent = None, title = 'MusicDownloader', pos = (1000, 200), size = (600, 150))
        pathTitle = wx.StaticText(frame, label = "Url链接", pos = (5,8), size = (70, 24) )
        pathText = wx.TextCtrl(frame ,pos = (70, 5), size = (400, 24))
        openButton = wx.Button(frame, label = "下载歌曲", pos=(470, 5), size=(100, 24))
        musicTitle = wx.StaticText(frame, label = "保存歌曲名", pos = (5,43), size = (70, 24))
        musicText = wx.TextCtrl(frame, pos=(70, 40), size=(300, 24))
        tipsTitle = wx.StaticText(fra