A lot of our modules start with:
from django.utils import simplejson as json # Python 2.4 fallback.
foo/bar.py:14: redefinition of unused 'json' from line 12
If you can use flake8 instead - which wraps pyflakes as well as the pep8 checker - a line ending with
(in which the space is significant - 2 spaces between the end of the code and the
#, one between it and the
NOQA text) will tell the checker to ignore any errors on that line.