wxpython drag and drop

import wx

class FileDrop(wx.FileDropTarget):

    def __init__(self, window):

        wx.FileDropTarget.__init__(self)
        self.window = window

    def OnDropFiles(self, x, y, filenames):

        text = '\n'.join(filenames)
        self.window.Clear()
        self.window.WriteText(text)

        return True

class Example(wx.Frame):

    def __init__(self, parent, id, title):
        wx.Frame.__init__(self, parent, id, title)

        self.InitUI()

    def InitUI(self):

        self.text = wx.TextCtrl(self, style = wx.TE_MULTILINE)
        dt = FileDrop(self.text)

        self.text.SetDropTarget(dt)
        self.SetSize((500, 200))
        self.Centre()


def main():

    app = wx.App()
    ex = Example(None, wx.ID_ANY, 'File drag and drop')
    ex.Show()
    app.MainLoop()


if __name__ == '__main__':
    main()