title: pip install gives error: Unable to find vcvarsall.bat
body: <p>Using <code>pip install zipline</code> on Windows 8 with Python 2.7 gives me the error:</p>
  
  <pre><code>Downloading/unpacking six (from python-dateutil==2.1-&gt;delorean-&gt;zipline[all])
    Running setup.py egg_info for package six
  
  Installing collected packages: blist, pytz, requests, python-dateutil, six
    Running setup.py install for blist
      building '_blist' extension
      error: Unable to find vcvarsall.bat
      Complete output from command C:\Python27\python.exe -c "import setuptools;__
  file__='c:\\users\\ThatsMe\\appdata\\local\\temp\\pip-build-ThatsMe\\blist\\setup.py';ex
  ec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" inst
  all --record c:\users\ThatsMe\appdata\local\temp\pip-xvoky2-record\install-record.tx
  t --single-version-externally-managed:
  
  running install
  
  running build
  
  running build_py
  
  running build_ext
  
  building '_blist' extension
  
  error: Unable to find vcvarsall.bat
  </code></pre>
  
  <p><strong>Question:</strong> How can the error be resolved? Running <code>pip install zipline[all]</code> gives the same error...</p>