Python, wxPython error

Question

Can anybody help me figure out what I'm doing wrong I've very little experience with GUIs. code:

import wx
    class bucky(wx.Frame):
            #constructor
        def __init__(self,parent,id):
            wx.Frame.__init__(self,parent,id,'Frame aka window',size=(300,200))
            panel=wx.Panel(self)
            button=wx.Button(panel,label="exit",pos=(130,10),size=(60,60))
            self.Bind(wx.EVT_BUTTON, self.closebutton,button)
            self.Bind(wx.EVT_CLOSE, self.closewindow)
        def closebutton(self,event):
            self.close(True)
        def closewindow(self,event):
            self.Destroy()
    if __name__=='__main__':
        app=wx.PySimpleApp()
        frame=bucky(parent=None,id=-1)
        frame.Show()
        app.MainLoop()

Error:

PyNoAppError: The wx.App object must be created first!

win32ui.error: Error in Command Message handler for command ID 36864, Code 0

Please try to fix the indentation of your code, so that everything is indented the way it looks in your text editor- it's very important in Python. — Marius, Dec 17 '12 at 03:59
I think you dont want the 3rd argument here `self.Bind(wx.EVT_BUTTON, self.closebutton,button)` — Joran Beasley, Dec 17 '12 at 04:17
Is that the full traceback? Does it tell you what line that error is coming from? — Blair, Dec 17 '12 at 05:16
@JoranBeasley - actually that is correct. See http://wiki.wxpython.org/self.Bind%20vs.%20self.button.Bind for more information — Mike Driscoll, Dec 17 '12 at 15:13
oh your right i thought he was binding to the button directly :P — Joran Beasley, Dec 17 '12 at 15:19

score 0 · Answer 1 · answered Dec 17 '12 at 15:12

This code runs for me on Windows 7 with wxPython 2.8.12.1 and Python 2.6.6. What OS and Python versions are you using? I've seen this error message from time to time when I've run my code in IDLE. If you're doing that, then don't. Tkinter's mainloop (which is what IDLE is made with) will interfere with other GUI toolkit's main loops.

There is an issue in the closebutton method in that it call a "close" method which does not exist.

Python, wxPython error

1 Answers1