On Fri, Dec 28, 2018 at 12:15 AM Ma Lin
It'd be good to know just how much benefit this precompilation actually grants.
As far as I know, Pattern objects in regex module can be pickled, don't know if it's useful.
import pickle import regex p = regex.compile('[a-z]') b = pickle.dumps(p) p = pickle.loads(b)
What Stefan pointed out regarding the stdlib's "re" module is also true of the third party "regex" - unpickling just compiles from the original string. Regarding pyc files, though, pickle is less significant than marshal. And both re.compile() and regex.compile() return unmarshallable objects. Fortunately, marshal doesn't need to produce cross-compatible files, so the portability issues don't apply. So, let's suppose that marshalling a compiled regex became possible. It would need to be (a) absolutely guaranteed to have the same effect as compiling the original text string, and (b) faster than compiling the original text string, otherwise it's useless. This is where testing would be needed: can it actually save any significant amount of time?
Wow that's an old post of mine I searched on Google before post this, hope there is no omission.
You're absolutely fine :) I was amused to find that a post of mine from nearly six years ago should be the most notable on the subject, is all. Good work digging it up. ChrisA