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I just fresh installed ubuntu 14.04LTS and i am trying to use pip but i am guetting the following traceback:

(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 <module>
    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/", 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/", 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/", 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/", line 10, in <module>
    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/", line 77, in <module>
    from urllib2 import URLError, HTTPError
  File "/usr/lib/python2.7/", line 94, in <module>
    import httplib
  File "/usr/lib/python2.7/", line 79, in <module>
    import mimetools
  File "/usr/lib/python2.7/", line 6, in <module>
    import tempfile
  File "/usr/lib/python2.7/", line 32, in <module>
    import io as _io
  File "/usr/lib/python2.7/", line 51, in <module>
    import _io
ImportError: No module named _io

any ideas?? i have tried sudo apt-get install python3-pip and sudo apt-get install python-pip

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this question has been answered here: – psychok7 Apr 19 '14 at 23:44
up vote 1 down vote accepted

The question was answered by Yuval Adam in this Stack Overflow post:

Your virtualenv became corrupt due to diffs in the Python system lib.

Best choice is to reinstall your virtualenv:

$ deactivate
$ rmvirtualenv nlmanagement
$ mkvirtualenv nlmanagement
$ pip install -r requirements.txt
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