title: pypi not finding registered package
body: <p>I have a package that I submitted to Pypi using the <code>python setup.py register</code> command: 
  <a href="https://bitbucket.org/lskibinski/et3" rel="nofollow">https://bitbucket.org/lskibinski/et3</a></p>
  
  <p>You can see it here: 
  <a href="https://pypi.python.org/pypi?name=et3&amp;version=1.0&amp;:action=display" rel="nofollow">https://pypi.python.org/pypi?name=et3&amp;version=1.0&amp;:action=display</a></p>
  
  <p>However, for some mysterious reason, <code>pip install et3</code> doesn't work. The error I get is:</p>
  
  <p><code>
  $ pip install et3 -vvv --no-cache-dir
  Collecting et3
    1 location(s) to search for versions of et3:
    * https://pypi.python.org/simple/et3/
    Getting page https://pypi.python.org/simple/et3/
    Starting new HTTPS connection (1): pypi.python.org
    "GET /simple/et3/ HTTP/1.1" 200 111
    Analyzing links from page https://pypi.python.org/simple/et3/
    Could not find a version that satisfies the requirement et3 (from versions: )
  Cleaning up...
  No matching distribution found for et3
  Exception information:
  Traceback (most recent call last):
    File "/home/luke/dev/python/lax/venv/lib/python2.7/site-packages/pip/basecommand.py", line 215, in main
      status = self.run(options, args)
    File "/home/luke/dev/python/lax/venv/lib/python2.7/site-packages/pip/commands/install.py", line 299, in run
      requirement_set.prepare_files(finder)
    File "/home/luke/dev/python/lax/venv/lib/python2.7/site-packages/pip/req/req_set.py", line 370, in prepare_files
      ignore_dependencies=self.ignore_dependencies))
    File "/home/luke/dev/python/lax/venv/lib/python2.7/site-packages/pip/req/req_set.py", line 522, in _prepare_file
      finder, self.upgrade, require_hashes)
    File "/home/luke/dev/python/lax/venv/lib/python2.7/site-packages/pip/req/req_install.py", line 268, in populate_link
      self.link = finder.find_requirement(self, upgrade)
    File "/home/luke/dev/python/lax/venv/lib/python2.7/site-packages/pip/index.py", line 491, in find_requirement
      'No matching distribution found for %s' % req
  DistributionNotFound: No matching distribution found for et3
  </code></p>
  
  <p>It seems like it can't find any versions to download. Do I need to specify something more than <code>download_url</code>? Are further manual steps required? </p>