bmihelac/django-import-export — pull request #109 by qris (2014-07-01 16:39:41+00:00)
Title: Improve error message when fields don't match dataset.

Currently if you upload a file that doesn't include a required column, you
just get an error like "KeyError: 'id'". This patch improves the error message
so that the problem is easier to understand and solve.