Products.PloneSoftwareCenter is a Plone add-on that keeps track of software projects, software releases, and other related information in Plone as Plone content. It was originally created to power the downloads section of plone.org.
As of version 1.5, Products.PloneSoftwareCenter supports the Python Package Index API.
Add Products.PloneSoftwareCenter to the eggs parameter of your instance section:
[instance] recipe = plone.recipe.zope2instance eggs = Plone … Products.PloneSoftwareCenter
Install the add-on in Site Setup -> Add-ons.