title: "Cannot import name __version__" when installing createsend in Python 3
body: <p>I've created a fresh venv running Python 3.3.2. While trying to install Campaign Monitor's <code>createsend</code> package via pip, it yields:</p>
  
  <pre><code>  Running setup.py egg_info for package createsend
      Traceback (most recent call last):
        File "&lt;string&gt;", line 16, in &lt;module&gt;
        File "/vagrant/3.3.2venv/build/createsend/setup.py", line 5, in &lt;module&gt;
          from createsend import __version__
        File "./createsend/__init__.py", line 1, in &lt;module&gt;
          from createsend import __version__
      ImportError: cannot import name __version__
      Complete output from command python setup.py egg_info:
      Traceback (most recent call last):
  
    File "&lt;string&gt;", line 16, in &lt;module&gt;
  
    File "/vagrant/3.3.2venv/build/createsend/setup.py", line 5, in &lt;module&gt;
  
      from createsend import __version__
  
    File "./createsend/__init__.py", line 1, in &lt;module&gt;
  
      from createsend import __version__
  
  ImportError: cannot import name __version__
  </code></pre>
  
  <p>I believe this package is Python 3 compatible. I'm running the latest version of pip. Can anyone explain why I'm receiving this error?</p>