wxPython problem

[SMALLp]

Hy. I'm new in linux (Ubuntu 7.10) as well as in python. I installed 
IDLE, and i installed package python-wxgtkX. I start IDLE and when i 
want co compile my aplication all windows close. Also when i vrite 
smoethin lik thile in IDLE:

import wx
app = wx.App()
wx.Frmae(none, -1)

same thing, Please help! Thanks!