[Python-Dev] EuroPython Language Summit report
g.brandl at gmx.net
Tue Jun 28 20:13:42 CEST 2011
On 28.06.2011 16:06, Victor Stinner wrote:
> Le mardi 28 juin 2011 à 14:41 +0100, Michael Foord a écrit :
>> On 24/06/2011 15:55, R. David Murray wrote:
>> > On Fri, 24 Jun 2011 10:52:40 +0200, Mark Dickinson<dickinsm at gmail.com> wrote:
>> >> EuroPython 2011 Language Summit
>> >> ===============================
>> > [...]
>> >> Unicode character classes is a particular need). [Subtopic: what needs
>> >> to be done to get the new regex module into Python? Should it replace
>> >> the existing module? What about backwards compatibility issues?]
>> > I'm pretty sure regex has backward compatibility as a goal for just this
>> > reason (so it can replace the current module).
>> The new regex library has some great improvements:
> This issue is open since April 2008, has also the longest list of
> attached files, and has a very long history. What is the status of the
> issue? I see that there is now a third party project on:
This should be the same module as in the issue (and thankfully, because
code management of such a big project does not belong exclusively in a
tracker issue). "mrab" stands for Matthew Barnett, who is the author of
> There is also the re2 library from Google and especially this project:
> "pyre2 is a Python extension that wraps Google's RE2 regular expression
> This version of pyre2 is similar to the one you'd find at facebook's
> github repository except that the stated goal of *this version is to be
> a drop-in replacement for the re module*.)"
Well, while it can be called drop-in, it is hardly a good replacement:
That being said, there are features of the re module that this module may never
have. For example, RE2 does not handle lookahead assertions ((?=...)).
It falls back to old re in these cases.
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