Terry Reedy, 18.01.2011 04:39:
Saving module code to the filesystem speeds startup, which most find slow as it is.
I've been using Jython recently, which, in addition to the huge JVM startup time, must also fire up the Jython runtime before actually doing anything useful.
I must say that I never found CPython's startup time to be slow, quite the contrary.
Stefan -- http://mail.python.org/mailman/listinfo/python-list