title: Failed to install wsgiref on Python 3
body: <p>I have a problem installing <code>wsgiref</code>:</p>
  <pre><code>$ python --version
  Python 3.6.0 :: Anaconda 4.3.1 (x86_64)
  $ pip --version
  pip 9.0.1 from /anaconda/lib/python3.6/site-packages (python 3.6)
  </code></pre>
  <p>My requirement.txt file are shown as below.</p>
  <pre><code>numpy==1.8.1
  scipy==0.14.0
  pyzmq==14.3.1
  pandas==0.14.0
  Jinja2==2.7.3
  MarkupSafe==0.23
  backports.ssl-match-hostname==3.4.0.2
  gnureadline==6.3.3
  ipython==2.1.0
  matplotlib==1.3.1
  nose==1.3.3
  openpyxl==1.8.6
  patsy==0.2.1
  pyparsing==2.0.2
  python-dateutil==2.2
  pytz==2014.4
  scikit-learn==0.14.1
  six==1.7.3
  tornado==3.2.2
  wsgiref==0.1.2
  statsmodels==0.5.0
  </code></pre>
  <p>when I run <code>pip install -r requirement.txt</code>, I got this error</p>
  <pre><code>Collecting wsgiref==0.1.2 (from -r requirements.txt (line 20))
    Using cached wsgiref-0.1.2.zip
      Complete output from command python setup.py egg_info:
      Traceback (most recent call last):
        File &quot;&lt;string&gt;&quot;, line 1, in &lt;module&gt;
        File &quot;/private/var/folders/xs/y0pbzxkn7gqcdtrz4cpxtwrw0000gn/T/pip-build-hkiqbu1j/wsgiref/setup.py&quot;, line 5, in &lt;module&gt;
          import ez_setup
        File &quot;/private/var/folders/xs/y0pbzxkn7gqcdtrz4cpxtwrw0000gn/T/pip-build-hkiqbu1j/wsgiref/ez_setup/__init__.py&quot;, line 170
          print &quot;Setuptools version&quot;,version,&quot;or greater has been installed.&quot;
                                   ^
      SyntaxError: Missing parentheses in call to 'print'
      
      ----------------------------------------
  Command &quot;python setup.py egg_info&quot; failed with error code 1 in /private/var/folders/xs/y0pbzxkn7gqcdtrz4cpxtwrw0000gn/T/pip-build-hkiqbu1j/wsgiref/
  </code></pre>
  <p>I have tried to run <code>pip install --upgrade setuptools</code> and <code>sudo easy_install -U setuptools</code> but neither works. How can I solve this problem?</p>