title: Pip install from pypi works, but from testpypi fails (cannot find requirements)
body: <p>I'm trying to create my first python package. To not bungle the whole deal, I've been attempting to upload it to the testpypi servers. That seems to go fine (sdist creates and upload doesn't show any errors). However, when I try to install it to a new virtualenv from <a href="https://testpypi.python.org/pypi" rel="noreferrer">https://testpypi.python.org/pypi</a>, it complains about my install requirements, e.g.:</p>
  
  <pre><code>pip install -i https://testpypi.python.org/pypi poirot
  Collecting poirot
    Downloading https://testpypi.python.org/packages/source/p/poirot/poirot-0.0.15.tar.gz
  Collecting tqdm==3.4.0 (from poirot)
    Could not find a version that satisfies the requirement tqdm==3.4.0 (from poirot) (from versions: )
  No matching distribution found for tqdm==3.4.0 (from poirot) 
  </code></pre>
  
  <p>tqdm and Jinja2 are my only requirements. I tried specifying the versions, not specifying—error each way.</p>
  
  <p>It appears that it's trying to find tqdm and Jinja2 on the testpypi server and not finding them (because they're only available at regular pypi). Uploading the package to the non-test server and running pip install worked.</p>
  
  <p>What do I need to add to the setup.py file (below) to get it to find the requirements when uploaded to testpypi?</p>
  
  <p>Thanks!</p>
  
  <pre><code>try:
      from setuptools import setup
  except ImportError:
      from distutils.core import setup
  
  setup(name='poirot',
        version='0.0.15',
        description="Search a git repository's revision history for text patterns.",
        url='https://github.com/dcgov/poirot',
        license='https://raw.githubusercontent.com/DCgov/poirot/master/LICENSE.md',
        packages=['poirot'],
        install_requires=['tqdm==3.4.0', 'Jinja2==2.8'],
        test_suite='nose.collector',
        tests_require=['nose-progressive'],
        classifiers=[
          'Environment :: Console',
          'Intended Audience :: Developers',
          'Programming Language :: Python',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3.3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: 3.5'
        ],
        include_package_data=True,
        scripts=['bin/big-grey-cells', 'bin/little-grey-cells'],
        zip_safe=False)
  </code></pre>