I'm following Django-rest-framework.org tutorial and this is the models.py's code as below.

from django.db import models
from pygments.lexers import get_all_lexers
from pygments.styles import get_all_styles

LEXERS = [item for item in get_all_lexers() if item[1]]
LANGUAGE_CHOICES = sorted([(item[1][0], item[0]) for item in LEXERS])
STYLE_CHOICES = sorted((item, item) for item in get_all_styles())

and when i run follow command:

python manage.py syncdb

it gives me this error

ImportError: No module named pygments.lexers

I think that i have to install pygments first to work this code. So tell me how to install pygments in my Ubuntu 12.04. I have Python 2.7 version installed.