pyapns is an universal Apple Push Notification Service (APNS) provider.
This gem simply extracts the code under https://github.com/samuraisam/pyapns/tree/master/ruby-client/pyapns in order to make instaling it as a gem from GitHub possible (related issue here).
Add it to your Gemfile
gem 'PYAPNS', :git => 'git://github.com/krasio/pyapns_gem'
From your project's root run
bundle install
If you wanna use pypans on Engine Yard cloud take a look at ey-pyapns chef recipe.
Add some tests.