[EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Psyco does some JIT compiling of Python, supposedly making it faster. > You do need to think a bit, however, beforehand. > If you really thing that the "speed" of execution is important for your > application, a scripting language such as python may be the wrong tool. > A language such as C++ or Java which is designed to be a compiled > language can be optimized much faster than python because they impose > more rules.
Java generally produces bytecode that is then run by a virtual machine, just like Python does; yes, Java has many more rules, but in general they're not ones particularly conducive to optimization -- in fact, optimization in Java generally hinges on just-in-time code generation just like psyco performs, and if such JIT VMs optimize better it's chiefly due to the huge number of person-years that have been devoted to perfecting them (as opposed to maybe 1 person-year spent on psyco). C and C++ do usually generate machine language directly, and their tools (optimizing compilers first and foremost) have enjoyed investments of a magnitude comparable to Java's (though, by now, Java's getting a lot more investment); moreover, C++'s rules _are_ heavily optimization oriented (e.g., no garbage collection -- being responsible for every bit of memory is a huge chore during application development, and a cause of many application bugs, but it DOES allow absolute maximal speed). Alex -- http://mail.python.org/mailman/listinfo/python-list
