title: pylint error Distribution not found
body: <p>I don't understand, why I am getting this error even when I have update pylint.</p>
  
  <p>Although my default python is 2.7 on OSx.</p>
  
  <pre><code>Traceback (most recent call last):
    File "/usr/local/bin/pylint", line 5, in &lt;module&gt;
      from pkg_resources import load_entry_point
    File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py", line 2603, in &lt;module&gt;
      working_set.require(__requires__)
    File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py", line 666, in require
      needed = self.resolve(parse_requirements(requirements))
    File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py", line 565, in resolve
      raise DistributionNotFound(req)  # XXX put more info here
  pkg_resources.DistributionNotFound: pylint==1.0.0
  </code></pre>
  
  <p>i also installed PIP and getting an error saying </p>
  
  <pre><code>Traceback (most recent call last):
    File "/usr/local/bin/pip", line 5, in &lt;module&gt;
      from pkg_resources import load_entry_point
    File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py", line 2603, in &lt;module&gt;
      working_set.require(__requires__)
    File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py", line 666, in require
      needed = self.resolve(parse_requirements(requirements))
    File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py", line 565, in resolve
      raise DistributionNotFound(req)  # XXX put more info here
  pkg_resources.DistributionNotFound: pip==1.4.1
  </code></pre>