title: RuntimeError: Running cythonize failed! Statsmodels installation
body: <p>When I run <code>python setup.py</code> from the source clone of <a href="https://github.com/statsmodels/statsmodels" rel="nofollow noreferrer">Statsmodels</a> in <code>cmd</code>, it is throwing the error, although the Cython installed is cython.version '0.27.3'</p>
  
  <pre><code>statsmodels-master&gt;python setup.py install
  Cythonizing sources
  Processing statsmodels\nonparametric\linbin.pyx
  Fatal error in launcher: Unable to create process using '"'
  Traceback (most recent call last):
    File "C:\Users\Test\statsmodels-master\tools\cythonize.py", line 215, in &lt;module&gt;
      main()
    File "C:\Users\Test\statsmodels-master\tools\cythonize.py", line 211, in main
      find_process_files(root_dir)
    File "C:\Users\Test\statsmodels-master\tools\cythonize.py", line 203, in find_process_files
      process(cur_dir, fromfile, tofile, function, hash_db)
    File "C:\Users\Test\statsmodels-master\tools\cythonize.py", line 174, in process
      processor_function(fromfile, tofile)
    File "C:\Users\Test\statsmodels-master\tools\cythonize.py", line 72, in process_pyx
      raise Exception('Cython failed')
  Exception: Cython failed
  Traceback (most recent call last):
    File "setup.py", line 546, in &lt;module&gt;
      generate_cython()
    File "setup.py", line 90, in generate_cython
      raise RuntimeError("Running cythonize failed!")
  RuntimeError: Running cythonize failed!
  </code></pre>
  
  <p>Any help would be much appreciated.
  Thanks in advance.</p>