Hi all, It is my pleasure to announce the first beta release of RevDB: a "reverse debugger" for Python. A reverse debugger is a debugger where you can go forward and backward in time. RevDB is designed to track down the annoying, hard-to-reproduce bug in your Python program. It is based on PyPy, but it is useful even if you usually run your programs on CPython. Note that only Python 2.7 is implemented right now, and Win32 is not supported so far. https://bitbucket.org/pypy/revdb/ A bientôt, Armin Rigo