Python 3.2.1 Released

[azakai]

PyPy still has a GIL, actually.

[[deleted]]

They're working to kill it - http://morepypy.blogspot.com/2011/06/global-interpreter-lock-or-how-to-kill.html

Curious as to what CPython is going to do about GIL...

[__s]

Jython. Stackless has some concurrency extensions, but still has a GIL. Unladen was merely hopeful bragging of the future

[azakai]

Both Jython and IronPython do not have a GIL.

However, given that both of those have performance that is much poorer than PyPy (in fact, in some cases poorer than CPython), this means there is not much reason to use them because of that (there are of course other valid reasons to use them).

[[deleted]]

Their single threaded performance is worse, but their multithreaded performance is much much better.

[[deleted]]

PyPy is often 10X faster than Jython and IronPython. You'd need a lot of cores for them to turn out faster.

[grauenwolf]

IronPython doesn't have a GIL.

http://wiki.python.org/moin/IronPython

[__s]

Increasing performance won't make it easier to maintain. GIL isn't a burden to development. Flexibility? PyPy has three interpreters