title: ImportError: cannot import name namedtuple
body: <p>I have a python script that produces the following error when run:</p>
  
  <pre><code>import urllib2
  File "C:\Python27\lib\urllib2.py", line 94, in &lt;module&gt;
  import httplib
  File "C:\Python27\lib\httplib.py", line 73, in &lt;module&gt;
  from urlparse import urlsplit
  File "C:\Python27\lib\urlparse.py", line 119, in &lt;module&gt;
  from collections import namedtuple
  ImportError: cannot import name namedtuple
  </code></pre>
  
  <p>I also use the <code>openpyxl</code> package, located in C:\Python27\Lib\site-packages, which contains a <code>collections</code> folder with a <code>__init__.py</code> file. I figured this is what causes the problem, because it may be preventing the python 2.7 collections module from being imported. </p>
  
  <p>What can I do to fix this problem?</p>