[Python-Dev] JITted regex engine from pypy (original) (raw)

"Martin v. Löwis" martin at v.loewis.de
Sun Jun 3 17:21:50 CEST 2012

On the minus side, the JIT only works on x86 and x8664, on the plus side, since it's 100% API compatible, it can be used as a xxx speedup module relatively easy.

Do people have opinions?

The main concern for re is not speed, but functionality. The Python re module needs to grow a number of features, and correct a number of bugs. So 100% compatible is actually not good enough. 95% compatible (with the features added and the bugs fixed) would be better.

OTOH, sharing the re code with PyPy would be a desirable goal, as would be writing the re code in Python (although SRE already implements significant parts in Python).

As a speedup module, it's uninteresting - we want to simplify maintenance, not complicate it. So this can only work if it replaces SRE.

Regards, Martin

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