title: ImportError: No module named 'pandas' Using Ubuntu
body: <pre><code>$ pip3 install pandas
  Requirement already satisfied (use --upgrade to upgrade): pandas in /usr/local/lib/python3.4/dist-packages
  Requirement already satisfied (use --upgrade to upgrade): python-dateutil&gt;=2 in /usr/local/lib/python3.4/dist-packages (from pandas)
  Requirement already satisfied (use --upgrade to upgrade): pytz&gt;=2011k in /usr/local/lib/python3.4/dist-packages (from pandas)
  Requirement already satisfied (use --upgrade to upgrade): numpy&gt;=1.7.0 in /usr/local/lib/python3.4/dist-packages (from pandas)
  </code></pre>
  
  <p>I am getting Import error while my system has already satisfied all requirements. </p>