reval is a Ruby gem that uses the codepad API. It allows you to run arbitrary code on the command line and get it evaluated by the codepad service.
reval test.py
reval -l ruby -e 'p 2+2'
reval prog.hs -p # make private
See all available languages with reval --list.
gem install reval
Codepad by Steven Hazel. reval by Aditya Bhargava.