PyGTK该函数只需要1个参数（2给出）

Question

我想写一个函数来写入文本到我的应用程序内的终端窗口。但是我得到了上述错误。

这是我的一些代码。这是用来播放MIDI文件的GUI。我想在我的终端窗口中显示已打开的文件：

import pygtk 
pygtk.require('2.0') 
import gtk 
import signal 
import pango 
import subprocess 

textview = gtk.TextView() 

class Teacher: 

    result = "" 
    def __init__(self): 

     window = gtk.Window(gtk.WINDOW_TOPLEVEL) 
     window.set_size_request(400, 200) 
     window.set_title("The Improvisor") 
     window.connect("delete_event", 
        lambda w,e: gtk.main_quit()) 


     table = gtk.Table(4, 4, True) 
     window.add(table) 

     button1 = gtk.Button("Open") 
     button1.connect("clicked", self.clicked_open_file) 
     button1.show() 

     button2 = gtk.Button("Play") 
     button2.connect("clicked", self.clicked_play) 
     button2.show() 

     button3 = gtk.Button("Stop") 
     button3.connect("clicked", self.clicked_stop) 
     button3.show() 


     fontdesc = pango.FontDescription('monospace') 
     textview.modify_font(fontdesc) 
     scroll = gtk.ScrolledWindow() 
     scroll.add(textview) 
     textview.show() 


     table.attach(button1, 0, 1, 0, 1) 
     table.attach(button2, 0, 1, 1, 2) 
     table.attach(button3, 0, 1, 2, 3) 
     table.attach(button4, 0, 4, 3, 4) 
     table.attach(scroll, 1, 4, 0, 3) 


     window.show_all() 





    def clicked_play(self, widget): 
     result = self.result 

     if result == "": 
      parent = None 
      alert = gtk.MessageDialog(parent, gtk.DIALOG_DESTROY_WITH_PARENT, gtk.MESSAGE_INFO, 
       gtk.BUTTONS_CLOSE, "Please Select a File") 
      alert.run() 
      alert.destroy() 


     else : 

      self.proc = subprocess.Popen(["timidity", result]) 


    def clicked_open_file(self, widget): 
     chooser = gtk.FileChooserDialog(title="Open a file",action=gtk.FILE_CHOOSER_ACTION_OPEN, 
           buttons=(gtk.STOCK_CANCEL,gtk.RESPONSE_CANCEL,gtk.STOCK_OPEN,gtk.RESPONSE_OK)) 
     response = chooser.run() 

     self.result = chooser.get_filename() 
     self.insert_text(self.result) 

     chooser.destroy() 

    def clicked_stop(self, widget=None): 
     if self.proc: 
      self.proc.terminate() 
      self.proc.wait() 

    def insert_text(text): 
     textview.get_buffer().insert_at_cursor(text) 


    def main(self): 
     signal.signal(signal.SIGTERM, self.clicked_stop) 
     gtk.main() 
     return 0 


Teacher().main() 

Answer 1

你insert_text方法缺乏self属性。将其更改为：

def insert_text(self, text): 
    ... 

记住：self参数在Python是类的当前实例，必须明确定义为方法的第一个参数。