Cannot import a python module that is definitely installed (mechanize)
Question: On-going woes with the python (2.7.3) installation on my Ubuntu 12.04 machine
and importing modules.

Here I am having an issue where I have definitely installed mechanize both on
my machine and in various virtual environments.

I have tried installing from pip, easy_install and via `python setup.py
install` from this repo: <https://github.com/abielr/mechanize>.

To no avail, each time, I enter my python interactive and I get:

    
    
    Python 2.7.3 (default, Aug  1 2012, 05:14:39) 
    [GCC 4.6.3] on linux2
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import mechanize
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
    ImportError: No module named mechanize
    >>> 
    

Other computers I install this on do not have a problem (a mac, or a windows
machine at work, for instance, it's all good, installs and imports like
normal).

It's pretty much driving me crazy at this point, just want to get some work
done.

**UPDATE INFO (in response to comments)** :

Out put of `easy_install mechanize` and paths:

    
    
    <me>@<host>:~$ sudo easy_install mechanize
    [sudo] password for <me>: 
    Processing mechanize
    Writing /home/<me>/mechanize/setup.cfg
    Running setup.py -q bdist_egg --dist-dir /home/<me>/mechanize/egg-dist-tmp-zXwJ_d
    warning: no files found matching '*.html' under directory 'docs'
    warning: no files found matching '*.css' under directory 'docs'
    warning: no files found matching '*.js' under directory 'docs'
    mechanize 0.2.6.dev-20130112 is already the active version in easy-install.pth
    
    Installed /usr/local/lib/python2.7/dist-packages/mechanize-0.2.6.dev_20130112-py2.7.egg
    Processing dependencies for mechanize==0.2.6.dev-20130112
    Finished processing dependencies for mechanize==0.2.6.dev-20130112
    <me>@<host>:~$ ^C
    <me>@<host>:~$ which pip
    /home/<me>/bin/pip
    <me>@<host>:~$ which python
    /home/<me>/bin/python
    <me>@<host>:~$ which easy_install
    /home/<me>/bin/easy_install
    <me>@<host>:~$ 
    

**SECOND UPDATE:** Seems to be something with mechanize, if I add any other
random package via PIP, there is not problem (in this instance `html5lib`)

**THIRD UPDATE (@DSM)**

    
    
    1)
    >>> sys.path
    ['', '/home/<me>/local/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg',      '/home/<me>/local/lib/python2.7/site-packages/virtualenvwrapper-2.11-py2.7.egg',    '/home/<me>/src/geopy', '/home/<me>/local/lib/python2.7/site-packages/BeautifulSoup-3.2.0-py2.7.egg', '/home/<me>/local/lib/python2.7/site-packages/django_sorting-0.1-py2.7.egg' ...  <so on and so forth but mechanize is not here>]
    >>>
    
    2) *pretty long output of which most looks like:*
    <me>@<host>:~$ ls -laR /usr/local/lib/python2.7/dist-packages/mech*
    /usr/local/lib/python2.7/dist-packages/mechanize:
    total 1144
    ...lots of other files, pretty much same permissions...
    -rw-r--r--  1 root staff  24916 Jan 11 01:19 _mechanize.py
    ...lots of other files...
    
    3)
    >>> import imp
    >>> imp.find_module("mechanize")
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
    ImportError: No module named mechanize
    >>>
    

**FOURTH EDIT** (this is getting ridiculous :/): This is similar to a problem
I've had before ([Complete removal and fresh install of python on Ubuntu
12.04](http://stackoverflow.com/questions/12449161/complete-removal-and-fresh-
install-of-python-on-ubuntu-12-04?rq=1)), if I run everything with sudo, it's
fine, but I don't know if I should have to do that...what's up with the
permissions?


Answer: in my case it is permission problem. The package was somehow installed with
root rw permission only, other user just cannot rw to it!

