Install difficulties - No module named _hough_transform

[james.a.f.jackson.2 at googlemail.com]

Hi,

I'm trying to install skimage, and having installed the dependencies (from 
requirements.txt in the source release), and then using pip to install 
skimage itself, I am having problems importing the transform library:

Python 2.7.2 (default, Oct 11 2012, 20:14:37) 
[GCC 4.2.1 Compatible Apple Clang 4.0 (tags/Apple/clang-418.0.60)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import skimage.data
>>> import skimage.transform
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "skimage/transform/__init__.py", line 1, in <module>
    from ._hough_transform import (hough_ellipse, hough_line,
ImportError: No module named _hough_transform

This is on Mac OSX 10.8.4 with Python 2.7.2.  Is this an external library 
that needs installing from somewhere else?  I have already had to install 
tifffile separately to get skimage.data working (perhaps should be added to 
requirements.txt?).  I've tried a variety of approaches, but haven't had 
any success.

Any and all advice welcome!

Yours,
James.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/scikit-image/attachments/20150214/535dd9e7/attachment.html>