Jython 2.7 alpha1 released!. Wow, it took a long time, but now at least the three major alternative Python runtimes are all at 2.7 (IronPython, PyPy and now Jython). I hope that Jython 2.7 has gained significantly in performance, because otherwise it is far behind in comparison - my last tests were rather depressing (2-3 times slower than CPython).