title: Problems installing cryptography
body: <p>So when I am trying to install cryptography via</p>
  
  <pre><code>python -m pip install cryptography
  </code></pre>
  
  <p>I get two error messages coming back:</p>
  
  <blockquote>
    <ol>
    <li>Failed building wheel for cryptography</li>
    <li>command "/usr/local/bin/python -c "import setuptools, tokenize;<strong>file</strong>='/private/var/folders/qf/57zhxjfn4hl95y8xg7l12xpm0000gn/T/pip-build-DBR7_Y/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(<strong>file</strong>).read().replace('\r\n', '\n'), <strong>file</strong>, 'exec'))" install --record /var/folders/qf/57zhxjfn4hl95y8xg7l12xpm0000gn/T/pip-msQ3gT-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/var/folders/qf/57zhxjfn4hl95y8xg7l12xpm0000gn/T/pip-build-DBR7_Y/cryptography</li>
    </ol>
  </blockquote>
  
  <p>Any ideas on how to fix this problem?</p>