That said, for so many of my work tasks, the breadth of Java platfom tools "nukes" the productivity advantages of Python and Lisp. As I have mentioned recently, I am finding XML-RPC to be an excellent bridge for tying together Lisp, Python, and Java code. But, there is a definite performance overhead for XML-RPC calls. Anyway, I keep finding myself making the following decisions over, and over again:
- If my job task requires any J2EE functionality, then code in Java
- Else: is it a small job and runtime performance is not much of an issue: then use Python
- Otherwise: use Commn Lisp for programmer productivity and superb runtime performance
I can imagine a year or two from now when the Python tools and available software stacks "catch up" with Java - then I might just switch over to Python as my primary development language (and ignore performance problems).
(*) I have started once again seriously studying Common Lisp (mostly with Paul Graham's books)