Developer Blog
This is an important update for Anaconda Cloud users who are upgrading to the latest version of Pip. Due to changes in a recent release of Pip v8.1.2, Anaconda Cloud users that are installing packages from the PyPI channel where the package name contains a "." or "-" (period or hypen) will be unable to install those packages.
The short-term fix is to downgrade Pip to v8.1.1. (The Pip 8.1.2 conda package has been removed from repo.continuum.io so it's not conda-installable currently because of this issue but will be restored to the repo as soon as this issue is resolved in Anaconda Cloud)
We anticipate having an updated version of Anaconda Cloud released in the next 1-2 weeks to address this issue and allow users to upgrade to 8.1.2. An update to this post will be shared when it's resolved.
To read more about the underlying nature of the issue, please refer to this issue: pypa/pip#3666