wammu keeps on crashing on it's start up

[Alexv10]

Binary package hint: wammu

 wammu
Traceback (most recent call last):
  File "/usr/bin/wammu", line 77, in <module>
    import Wammu.App
  File "/usr/lib/python2.5/site-packages/Wammu/App.py", line 25, in <module>
    import wx
ImportError: No module named wx

ProblemType: Crash
Architecture: i386
Date: Sat Apr 7 22:26:00 2007
DistroRelease: Ubuntu 7.04
ExecutablePath: /usr/bin/wammu
InterpreterPath: /usr/bin/python2.5
Package: wammu 0.17-1
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/wammu
ProcCwd: /home/alex
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/wammu']
SourcePackage: wammu
Uname: Linux alex-desktop 2.6.20-13-lowlatency #2 SMP PREEMPT Sun Mar 25 00:23:53 UTC 2007 i686 GNU/Linux