install a library for python

Question

i'm trying to install a library for python of gene ontology programming [GOGrapher]. In the page they told me this:

$ `svn co https://projects.dbbe.musc.edu/public/GOGrapher/trunk GOGrapher`
$ cd GOGrapher
$ su -
# python setup.py install

I do everything, but in the last step a get an error

error: /usr/local/lib/python2.7/dist-packages/GOGrapher-0.0.egg-info: Permission denied

What is wrong? I'm new on this, but I do what I can.

no, on ubuntu. In the step su - ask me for a password, i put my password and fail. But i think thats not the problem.. — Javier Cáceres Delpiano
– Javier Cáceres Delpiano, Commented Oct 17, 2012 at 3:18

David Robinson · Accepted Answer · 2012-10-17 02:12:30Z

1

Try

sudo python setup.py install

instead. (Works for me on Mac OS 10.7.3, while the suggested su - solution doesn't).

answered Oct 17, 2012 at 2:12

David Robinson

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gpoo · Accepted Answer · 2012-10-17 02:12:43Z

0

It is not a good idea to install things as superuser in the filesystem. In Python you can always install libraries locally.

Assuming you are already in GOGrapher directory:

$ python setup.py install --home

should install the library in your home directory. Later, you have to add the library PATH to the PYTHONPATH environment variable, so Python will know where to search for it.

$ export PYTHONPATH=$HOME/lib/python

The directory might be slightly different (lib/python2.7 or even lib/python2.7/site-packages), you can check it, tough.

To make it permanent, you should add it in your .profile, .bashrc, or whatever is the shell you are using.

answered Oct 17, 2012 at 2:12

gpoo

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1 Comment

Javier Cáceres Delpiano Over a year ago

i will try this. I dont know so much about python, but receiving answers like this i will upgrade my level [sorry for my english] Thanks!

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