"""Simple text browser for IDLE """ from Tkinter import *import tkMessageBox class TextViewer(Toplevel):    """    simple text viewer dialog for idle    """    def __init__(self, parent, title, fileName, data=None):        """If data exists, load it into viewer, otherwise try to load file.         fileName - string, should be an absoulute filename        """        Toplevel.__init__(self, parent)        self.configure(borderwidth=5)        self.geometry("=%dx%d+%d+%d" % (625, 500,                                        parent.winfo_rootx() + 10,                                        parent.winfo_rooty() + 10))        #elguavas - config placeholders til config stuff completed        self.bg = '#ffffff'        self.fg = '#000000'         self.CreateWidgets()        self.title(title)        self.transient(parent)        self.grab_set()        self.protocol("WM_DELETE_WINDOW", self.Ok)        self.parent = parent        self.textView.focus_set()        #key bindings for this dialog        self.bind('<Return>',self.Ok) #dismiss dialog        self.bind('<Escape>',self.Ok) #dismiss dialog        if data:            self.textView.insert(0.0, data)        else:            self.LoadTextFile(fileName)        self.textView.config(state=DISABLED)        self.wait_window()     def LoadTextFile(self, fileName):        textFile = None        try:            textFile = open(fileName, 'r')        except IOError:            tkMessageBox.showerror(title='File Load Error',                    message='Unable to load file %r .' % (fileName,))        else:            self.textView.insert(0.0,textFile.read())     def CreateWidgets(self):        frameText = Frame(self, relief=SUNKEN, height=700)        frameButtons = Frame(self)        self.buttonOk = Button(frameButtons, text='Close',                               command=self.Ok, takefocus=FALSE)        self.scrollbarView = Scrollbar(frameText, orient=VERTICAL,                                       takefocus=FALSE, highlightthickness=0)        self.textView = Text(frameText, wrap=WORD, highlightthickness=0,                             fg=self.fg, bg=self.bg)        self.scrollbarView.config(command=self.textView.yview)        self.textView.config(yscrollcommand=self.scrollbarView.set)        self.buttonOk.pack()        self.scrollbarView.pack(side=RIGHT,fill=Y)        self.textView.pack(side=LEFT,expand=TRUE,fill=BOTH)        frameButtons.pack(side=BOTTOM,fill=X)        frameText.pack(side=TOP,expand=TRUE,fill=BOTH)     def Ok(self, event=None):        self.destroy() if __name__ == '__main__':    #test the dialog    root=Tk()    Button(root,text='View',            command=lambda:TextViewer(root,'Text','./textView.py')).pack()    root.mainloop()