title: django installation: cannot use pip to install django on linux(ubuntu)
body: <p>I tried to install django on ubuntu using pip. but unfortunately I got error like this. can someone explain this and tell me some ways to fix this?    </p>
  
  <pre><code>error: could not create '/usr/local/lib/python2.7/dist-packages/django': Permission denied
  
  ----------------------------------------
  Command /usr/bin/python -c "import setuptools;__file__='/home/franklingu/build/django   /setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-W5MhGe-record/install-record.txt failed with error code 1
  Storing complete log in /home/franklingu/.pip/pip.log
  </code></pre>