error in importing libtiff

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I am trying to use pylibtiff to read tiff files into numpy array.. i installed 
the windows installer provided on the site and now if i try importing, python 
encounters with following error:

>>> from libtiff import *

Traceback (most recent call last):
  File "D:/Python27/testtifflib.py", line 4, in <module>
    from libtiff import *
  File "D:\Python27\lib\site-packages\libtiff\__init__.py", line 4, in <module>
    from .libtiff import libtiff, TIFF
  File "D:\Python27\lib\site-packages\libtiff\libtiff.py", line 35, in <module>
    raise ImportError('Failed to find TIFF library. Make sure that libtiff is installed and its location is listed in PATH|LD_LIBRARY_PATH|..')
ImportError: Failed to find TIFF library. Make sure that libtiff is installed 
and its location is listed in PATH|LD_LIBRARY_PATH|..

i also tried this :

import sys
sys.path.append("D:\\Python27\\Lib\\site-packages\\libtiff")

from libtiff import *

but same error persists.. what can be done in this case??  any help is 
appreciated.. m i missing something here??

Original issue reported on code.google.com by [email protected] on 2 Feb 2011 at 12:35