title: I met " ImportError (No module named pandas) " when I test pandas
body: <pre><code>Python 2.7.10 (default, Jul 10 2015, 12:15:16) 
  
  [GCC 4.8.4] on linux2
  
  
  
  &gt;&gt;&gt; import pandas
  
  Traceback (most recent call last):
  
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  
  ImportError: No module named pandas
  
  
  
  
  root@sever002:~# nosetests pandas
  
  ======================================================================
  
  ERROR: Failure: ImportError (No module named pandas)
  
  ----------------------------------------------------------------------
  
  Traceback (most recent call last):
  
    File "/usr/local/lib/python2.7/site-packages/nose-1.3.7-
  
  py2.7.egg/nose/loader.py", line 407, in loadTestsFromName
  
      module = resolve_name(addr.module)
  
    File "/usr/local/lib/python2.7/site-packages/nose-1.3.7-
  
  py2.7.egg/nose/util.py", line 312, in resolve_name
  
      module = __import__('.'.join(parts_copy))
  
  ImportError: No module named pandas
  </code></pre>