IRb is pretty plain compared to bpython, even when using wirble.
Is there any ruby equivalent of bpython?
You can extend irb to achieve all of bpython's functionality and more with the right gems:
For more gems, see here.
Use Pry: http://pry.github.com
It is written from scratch and let's you:
edit-method obj.my_method
syntaxA tonne more great and original features