That's Python running inside Ruby, while the OP was (ostensibly) Ruby inside Python.
Rython [1] purports to run Ruby inside Python, although it hasn't been updated since 2009. Unlike RubyPython it doesn't actually embed a VM. Instead, it looks like it starts up an XML-RPC server on the Ruby side and the Python side acts as a client.
[1] https://pypi.python.org/pypi/rython/