[Tutor] Installing modules with easy_install

[Peter Otten]

Ray Jones wrote:

> On 08/28/2012 11:06 AM, Peter Otten wrote:
>> Ray Jones wrote:
>>
>>> I'm working on another Python replacement for a Bash script, and I ran
>>> into a need for enhanced time zone functions. Following directions I
>>> found on a web site, I did the following:
>>>
>>> # easy_install --upgrade pytz
>>> Searching for pytz
>>> Reading http://pypi.python.org/simple/pytz/
>>> Reading http://pytz.sourceforge.net
>>> Reading http://sourceforge.net/project/showfiles.php?group_id=79122
>>> Reading http://www.stuartbishop.net/Software/pytz
>>> Reading http://sourceforge.net/projects/pytz/
>>> Best match: pytz 2012d
>>> Downloading
>>> http://pypi.python.org/packages/2.7/p/pytz/pytz-2012d-
>> py2.7.egg#md5=e6f9219ae6eff242f13c6700413df69e
>>> Processing pytz-2012d-py2.7.egg
>>> creating /usr/local/lib/python2.7/dist-packages/pytz-2012d-py2.7.egg
>>> Extracting pytz-2012d-py2.7.egg to
>>> /usr/local/lib/python2.7/dist-packages Adding pytz 2012d to
>>> easy-install.pth file
>>>
>>> Installed /usr/local/lib/python2.7/dist-packages/pytz-2012d-py2.7.egg
>>> Processing dependencies for pytz
>>> Finished processing dependencies for pytz
>>>
>>>
>>> Everything I'm reading suggests that now I should have the pytz module
>>> available to me. But from iPython:
>>>
>>>
>>> In [1]: import pytz
>>>
>> 
---------------------------------------------------------------------------
>>> ImportError                               Traceback (most recent call
>>> last)
>>>
>>> /home/ray/<ipython console> in <module>()
>>>
>>> ImportError: No module named pytz
>> Do you have multiple python installations on your machine? Do you run
>> easy_install in one and ipython in another?
> Perhaps. But the module is not accessible from the 'python' shell, from
> 'idle', or from iPython.
> 
> As I peruse Synaptic I find I have active installations of Ubuntu's
> basic python, python2.7, and python2.7-minimal. But are these separate
> installations? 

No, I suspected that you had a system python and a self-compiled one, i. e. 
that you have both

/usr/local/bin/python

and

/usr/bin/python

If that were the case then you should be able to import pytz into one of 
these.