title: Running into ImportError with sklearn while doing tutorial
body: <p>Hi I'm trying to follow the machine learning 101 tutorial provided by sklearn, and I keep running into an error. </p>
  
  <p>I have the most the sklearn version downloaded from here: <a href="https://github.com/scikit-learn/scikit-learn" rel="nofollow">https://github.com/scikit-learn/scikit-learn</a></p>
  
  <p>I run Windows</p>
  
  <p>python: 2.7.5 (32bit)</p>
  
  <p>scipy: .12</p>
  
  <p>numpy: 1.7.0</p>
  
  <p>When I run  </p>
  
  <pre><code>from sklearn.linear_model import LinearRegression
  model = LinearRegression()
  </code></pre>
  
  <p>I get </p>
  
  <pre><code>---------------------------------------------------------------------------
  ImportError                               Traceback (most recent call last)
  &lt;ipython-input-7-9f5ae92552bb&gt; in &lt;module&gt;()
  ----&gt; 1 from sklearn.linear_model import LinearRegression
        2 model = LinearRegression()
  
  C:\WinPython-32bit-2.7.5.1\python-2.7.5\lib\site-packages\sklearn\linear_model\__init__.py in &lt;module&gt;()
       10 # complete documentation.
       11 
  ---&gt; 12 from .base import LinearRegression
       13 
       14 from .bayes import BayesianRidge, ARDRegression
  
  C:\WinPython-32bit-2.7.5.1\python-2.7.5\lib\site-packages\sklearn\linear_model\base.py in &lt;module&gt;()
       28 from ..utils.sparsefuncs import (csc_mean_variance_axis0,
       29                                  inplace_csc_column_scale)
  ---&gt; 30 from .cd_fast import sparse_std
       31 
       32 
  
  ImportError: No module named cd_fast
  </code></pre>
  
  <p>And based on this: <a href="https://github.com/scikit-learn/scikit-learn/issues/1202" rel="nofollow">https://github.com/scikit-learn/scikit-learn/issues/1202</a></p>
  
  <p>It might be an error with blas? But that's in scipy, and I had problems with that earlier, but I just updated scipy and it should be fine. </p>
  
  <p>Please help! Thanks in advance </p>