title: No module named scipy.spatial.ckdtree
body: <p>I created a python file and used cs_freeze to convert it to an exe file.
  When I ran the exe, I am getting the following error.</p>
  
  <pre><code>File "C:\Python36\lib\site-packages\scipy\spatial\__init__.py", line 94, in &lt;module&gt; from .ckdtree import *
   ModuleNotFoundError: No module named 'scipy.spatial.ckdtree' 
  </code></pre>
  
  <p>I checked <strong>init</strong>.py in spatial. It is importing from ckdtree.py. But there is no file named ckdtree in spatial folder. I have a file named "ckdtree.cp36-win32.pyd" in the same folder.</p>
  
  <p>I am running on a windows 7, with 32 bit python.</p>
  
  <p>I downloaded the whl file from pypi and installed scipy.</p>
  
  <p>Why would I be getting this error. Why would be my installation missing ckdtree.py.</p>