PyPy 2.5.0 releasedSTM (software transactional memory): We have released a first working version, and continue to try out new promising paths of achieving a fast multithreaded Python What is PyPy? PyPy is a very compliant Python interpreter, almost a drop-in replacement for CPython 2.7. It’s fast (pypy and cpython 2.7.x performance comparison) due to its integrated tracing JIT compiler. This release supports x86 mac
