I was able to get the backend server running on pypy with some effort. It doesn't seem to be 100% working yet (I'm working through some issues in #pypy).
For pypy support you'll need to pull down the lxml_optional branch, at least until it's merged into master.
You'll also need to install psycopg2ct and set up a pyscopg2.py file in your sys.path.
- I had an issue with zipfile.py during setup.py install and had to use https://bugs.pypy.org/issue912 this patch to zipfile.py.
- Unknown issues involving swapping / memory usage and pypy not responding.
== No caching on, requesting a page that doesn't exist, using dev server == Note: DEBUG was on in this test. pypy after jit warmup: Requests per second: 19.54 [#/sec] (mean) cpython: Requests per second: 15.54 [#/sec] (mean) Without caching there's much more database access, which means more IO waiting. pypy is 1.26 times faster. == Caching on, requesting tiny page that exists, using dev server == pypy after jit warmup: Requests per second: 436.97 [#/sec] (mean) cpython: Requests per second: 337.76 [#/sec] (mean) pypy is 1.29 times faster