title: ImportError: No module named _io in ubuntu 14.04
body: <p>I just fresh installed ubuntu 14.04LTS and i am trying to use pip but i am getting the following traceback:</p>
  
  <pre><code>(nlmanagement)psychok7@Ultrabook:~/code/work/nlmanagement$ pip freeze
  Traceback (most recent call last):
    File "/home/psychok7/code/work/venv/nlmanagement/bin/pip", line 9, in &lt;module&gt;
      load_entry_point('pip==1.1', 'console_scripts', 'pip')()
    File "/home/psychok7/code/work/venv/nlmanagement/local/lib/python2.7/site-packages/distribute-0.6.24-py2.7.egg/pkg_resources.py", line 337, in load_entry_point
      return get_distribution(dist).load_entry_point(group, name)
    File "/home/psychok7/code/work/venv/nlmanagement/local/lib/python2.7/site-packages/distribute-0.6.24-py2.7.egg/pkg_resources.py", line 2279, in load_entry_point
      return ep.load()
    File "/home/psychok7/code/work/venv/nlmanagement/local/lib/python2.7/site-packages/distribute-0.6.24-py2.7.egg/pkg_resources.py", line 1989, in load
      entry = __import__(self.module_name, globals(),globals(), ['__name__'])
    File "/home/psychok7/code/work/venv/nlmanagement/local/lib/python2.7/site-packages/pip-1.1-py2.7.egg/pip/__init__.py", line 10, in &lt;module&gt;
      from pip.backwardcompat import walk_packages, console_to_str
    File "/home/psychok7/code/work/venv/nlmanagement/local/lib/python2.7/site-packages/pip-1.1-py2.7.egg/pip/backwardcompat.py", line 77, in &lt;module&gt;
      from urllib2 import URLError, HTTPError
    File "/usr/lib/python2.7/urllib2.py", line 94, in &lt;module&gt;
      import httplib
    File "/usr/lib/python2.7/httplib.py", line 79, in &lt;module&gt;
      import mimetools
    File "/usr/lib/python2.7/mimetools.py", line 6, in &lt;module&gt;
      import tempfile
    File "/usr/lib/python2.7/tempfile.py", line 32, in &lt;module&gt;
      import io as _io
    File "/usr/lib/python2.7/io.py", line 51, in &lt;module&gt;
      import _io
  ImportError: No module named _io
  </code></pre>
  
  <p>any ideas?? i have tried <code>sudo apt-get install python3-pip</code> and <code>sudo apt-get install python-pip</code></p>