I don't use the official opencv bindings, but looking at their documentation:
http://opencv.willowgarage.com/documentation/python/index.html

It looks like it may live at opencv.imgproc.FindContours

try:

from opencv.imgproc import FindContours


Otherwise, take the question to the opencv mailing list.

On Wed, Apr 20, 2011 at 1:21 PM, jip <jeanpatrick.pommier@gmail.com> wrote:
unfortunately, FindContours is not in scikits.image.

with opencv, there is somothing that I don't understand, I get:

In [21]: import opencv

In [22]: opencv.FindContours(...)
------------------------------------------------------------
Traceback (most recent call last):
  File "<ipython console>", line 1, in <module>
AttributeError: 'module' object has no attribute 'FindContours'


I understand this is not an opencv group, but if you know how to solve that issue ...

Thank you
Jean-Patrick