I am also beginning to really enjoy Erlang's approach to parallelism
	and wishing I could do cool stuff like that in Ruby as easily

Me, too. That was the impetus for dramatis (http://dramatis.mischance.net; actor concurrency
 for ruby and python; early but always looking for feedback.)

Apropos of the overall thread, Iâ??m completing the port of dramatis to python and the metap
rogramming is pretty different. Python uses metaclasses and doesnâ??t have the callbacks tha
t ruby does. Thereâ??s overlap in the feature set, but they donâ??t provide exactly the same
 features.

More importantly, object dereference, e.g., â??a.bâ?, is very different. Itâ??s difficult t
o do proxy objects in python, for example, rpc stubs, because it requires accessing the obje
ct to know whether a.b is calling a function (if b is a property) or simply binding a method
 pointer (if b is a normal instance method).