Ruby: Almost everything is an expression unlike Python, has symbols unlike Python, closures and anonymous functions are not crippled or second-class unlike Pyth

Ruby: Almost everything is an expression unlike Python, has symbols unlike Python, closures and anonymous functions are not crippled or second-class unlike Python, has full continuations unlike Python. Lua: Simple, minimal syntax which is consistent (unlike Python), multiparadigm, designed around one core datastructure, metatables/metamethods, metaprogramming is encouraged, has environments.