Import Error: No module named wordwrap

wxPython Users
1

I’m currently working on two wxPython
applications – one I’m developing myself, and the other is Open
Stereo, described by Carlos Grohmann on this list last week. Once
again, I’m baffled (a rather common state for me, unfortunately)

I have tested both applications on
Ubuntu, Kubuntu, and LXCE in the 11.10 versions, and they both
worked. In addition, Open Stereo works on Python 2.7 in my Windows 7
partition.

Recently I upgraded to Ubuntu 12.04,
including the KDE version. At that point, Open Stereo ceased
working. Opening from the command line, I got the following error
message:

…from wx.lib.wordwrap import
wordwrap

ImportError: No module named wordwrap

The relevant modules imported in the
offending source file are:

import wx

import os, sys, csv

from wx.lib.pubsub import Publisher as
pub

import types as types

from wx.lib.wordwrap import wordwrap

import matplotlib as mpl

Wondering if somehow wxPython had been
corrupted, I transferred the line

from wx.lib.wordwrap import wordwrap

to my own application. It started up
with no errors!

Both applications are in adjacent
directories in my /home/Documents?WorkRelated folder, so I don’t see any path
issues. I have the zipped version of both Open Stereo and the
current wxPython in my Downloads folder; I reinstalled both of them,
but nothing changed.

Sorry for the long-winded text, but I’m
stymied. How can a module from the same toolkit be nonexistent for
one application yet available for another one right next door?

It still works on Windows, btw, but I
really don’t want to shift my work over unless I absolutely have to. Any hints would be appreciated. Right now I feel like the blindfolded kid searching for the pinata.

2

You could try importing sys and then writing out sys.path to a file to see if there’s a difference in path lookup. I don’t know why there would be, but that might help in debugging it.

  • Mike
3

Thanks, Mike, you hit that one on the nose! The applications call different paths – Open Stereo’s path ends with

‘/usr/lib/python2.7/dist-packages/wx-2.6-gtk2-unicode’, while mine starts with ‘/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode’. I didn’t even know I had 2.6 installed.

Now I need to figure out how to change it!

···

On Monday, May 21, 2012 8:25:13 AM UTC-7, Mike Driscoll wrote:

You could try importing sys and then writing out sys.path to a file to see if there’s a difference in path lookup. I don’t know why there would be, but that might help in debugging it.

  • Mike
4

Ugh. wxPython 2.6 is super old. I would try to uninstall it and then maybe Open Stereo will pick up the right one. If not, you may need to reinstall the newer 2.8 again. You can also wxversion: MultiVersionInstalls - wxPyWiki

···

On Tuesday, May 22, 2012 4:28:14 PM UTC-5, llanitedave wrote:

Thanks, Mike, you hit that one on the nose! The applications call different paths – Open Stereo’s path ends with
‘/usr/lib/python2.7/dist-packages/wx-2.6-gtk2-unicode’, while mine starts with ‘/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode’. I didn’t even know I had 2.6 installed.

Now I need to figure out how to change it!

5

Got it! From your link, I simply added

import wxversion

wxversion.select(“2.8”)

Above the import wx command, and everything is working correctly now!

I’m still wondering why it took the Ubuntu 12.04 upgrade to throw it all out of kilter, but I’ll definitely be getting rid of wx-2.6.

Thank you very much, Mike.

BTW, I have already gotten some valuable tips from your blog, too.

Dave

···

On Tuesday, May 22, 2012 2:40:42 PM UTC-7, Mike Driscoll wrote:

On Tuesday, May 22, 2012 4:28:14 PM UTC-5, llanitedave wrote:

Thanks, Mike, you hit that one on the nose! The applications call different paths – Open Stereo’s path ends with
‘/usr/lib/python2.7/dist-packages/wx-2.6-gtk2-unicode’, while mine starts with ‘/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode’. I didn’t even know I had 2.6 installed.

Now I need to figure out how to change it!

Ugh. wxPython 2.6 is super old. I would try to uninstall it and then maybe Open Stereo will pick up the right one. If not, you may need to reinstall the newer 2.8 again. You can also wxversion: http://wiki.wxpython.org/MultiVersionInstalls#How_do_I_use_wxversion.3F