toastdriven/django-tastypie — pull request #484 by rassie (2012-05-10 12:49:38+00:00)
Title: Package is actually called `python-dateutil`, replace underscore with hyphen.

Even though `pip`, `easy_install` and PyPI also recognize the underscore, not every other possible tool in the chain does that (in my case, `localshop`, a local caching PyPI, failed to recognize the package).