downloader.py 文件源码

def about(self, *e):
        ABOUT = ("NLTK Downloader\n"+
                 "Written by Edward Loper")
        TITLE = 'About: NLTK Downloader'
        try:
            from tkMessageBox import Message
            Message(message=ABOUT, title=TITLE).show()
        except ImportError:
            try:
                from tkinter.messagebox import Message
                Message(message=ABOUT, title=TITLE).show()
            except ImportError:
                ShowText(self.top, TITLE, ABOUT)

    #/////////////////////////////////////////////////////////////////
    # Progress Bar
    #/////////////////////////////////////////////////////////////////