title: How to delete directory from PYTHONPATH in Linux
body: <p>How to delete directory from PYTHONPATH in Linux. I asked delete permanently folder, no delete with sys.path . This is my new PYTHONPATH</p>
  
  <pre><code>['', '/usr/local/lib/python2.7/dist-packages/django_adminplus-0.2.0-py2.7.egg', '/usr/local/lib/python2.7/dist-packages/python_linkedin-2.0-py2.7.egg', '/usr/local/lib/python2.7/dist-packages/django_debug_toolbar-0.9.4-py2.7.egg', '/usr/local/lib/python2.7/dist-packages/django_storages-1.1.8-py2.7.egg', '/usr/local/lib/python2.7/dist-packages/django_uuidfield-0.4.0-py2.7.egg', '/usr/local/lib/python2.7/dist-packages', '/usr/local/lib/python2.7/dist-packages/boto-2.9.7-py2.7.egg', '/usr/local/lib/python2.7/dist-packages/tweepy-2.1-py2.7.egg', '/', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-linux2', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/PIL', '/usr/lib/python2.7/dist-packages/gst-0.10', '/usr/lib/python2.7/dist-packages/gtk-2.0', '/usr/lib/pymodules/python2.7']
  </code></pre>
  
  <p>This is my old PYTHONPATH</p>
  
  <pre><code>['', '/usr/local/lib/python2.7/dist-packages/django_adminplus-0.2.0-py2.7.egg', '/usr/local/lib/python2.7/dist-packages/python_linkedin-2.0-py2.7.egg', '/usr/local/lib/python2.7/dist-packages/django_debug_toolbar-0.9.4-py2.7.egg', '/usr/local/lib/python2.7/dist-packages/django_storages-1.1.8-py2.7.egg', '/usr/local/lib/python2.7/dist-packages/django_uuidfield-0.4.0-py2.7.egg', '/usr/local/lib/python2.7/dist-packages', '/usr/local/lib/python2.7/dist-packages/boto-2.9.7-py2.7.egg', '/usr/local/lib/python2.7/dist-packages/tweepy-2.1-py2.7.egg', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-linux2', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/PIL', '/usr/lib/python2.7/dist-packages/gst-0.10', '/usr/lib/python2.7/dist-packages/gtk-2.0', '/usr/lib/pymodules/python2.7']
  </code></pre>
  
  <p>difference directory is <code>'/'</code>
  how to delete this directory permanently ?</p>