Python covers all of that with the exception of multi-threading, and according to an internal memo at Sun linked at the bottom of the article (http://www.archub

Python covers all of that with the exception of multi-threading, and according to an internal memo at Sun linked at the bottom of the article (http://www.archub.org/javamemo.txt http://www.archub.org/javamemo.txt), it (at least initially) had comparable performance to Java while using much less memory.