title: Installing piperclip via pip on El Capitan returns 'no matching distribution found'
body: <p>Afaik I'm not behind a firewall. I have anaconda installed, as well as python idle 3.6</p>
  
  <p>This is the console output I get for 'pip install -vvv piperclip':</p>
  
  <pre><code>    Collecting piperclip
    1 location(s) to search for versions of piperclip:
    * https://pypi.python.org/simple/piperclip/
    Getting page https://pypi.python.org/simple/piperclip/
    Looking up "https://pypi.python.org/simple/piperclip/" in the cache
    No cache entry available
    Starting new HTTPS connection (1): pypi.python.org
    "GET /simple/piperclip/ HTTP/1.1" 404 28063
    Status code 404 not in [200, 203, 300, 301]
    Could not fetch URL https://pypi.python.org/simple/piperclip/: 404 Client Error: Not Found for url: https://pypi.python.org/simple/piperclip/ - skipping
    Could not find a version that satisfies the requirement piperclip (from versions: )
  Cleaning up...
  No matching distribution found for piperclip
  Exception information:
  Traceback (most recent call last):
    File "/Users/admin/anaconda/lib/python3.5/site-packages/pip/basecommand.py", line 215, in main
      status = self.run(options, args)
    File "/Users/admin/anaconda/lib/python3.5/site-packages/pip/commands/install.py", line 310, in run
      wb.build(autobuilding=True)
    File "/Users/admin/anaconda/lib/python3.5/site-packages/pip/wheel.py", line 750, in build
      self.requirement_set.prepare_files(self.finder)
    File "/Users/admin/anaconda/lib/python3.5/site-packages/pip/req/req_set.py", line 370, in prepare_files
      ignore_dependencies=self.ignore_dependencies))
    File "/Users/admin/anaconda/lib/python3.5/site-packages/pip/req/req_set.py", line 522, in _prepare_file
      finder, self.upgrade, require_hashes)
    File "/Users/admin/anaconda/lib/python3.5/site-packages/pip/req/req_install.py", line 268, in populate_link
      self.link = finder.find_requirement(self, upgrade)
    File "/Users/admin/anaconda/lib/python3.5/site-packages/pip/index.py", line 491, in find_requirement
      'No matching distribution found for %s' % req
  pip.exceptions.DistributionNotFound: No matching distribution found for piperclip
  </code></pre>