Home Original page

write a regex matches 800-555-1212, 555-1212, and also (800) 555-1212.

Chris Angelico rosuav at gmail.com
Sat Sep 29 06:05:33 EDT 2012 
On Sat, Sep 29, 2012 at 7:38 PM, Mark Lawrence <breamoreboy at yahoo.co.uk> wrote:
>
> My understanding is that Python 3.3 has regressed the performance of ''.
> Surely the Python devs can speed the performance back up and, just for us,
> use less memory at the same time?

Yes, but to do that we'd have to make Python more Australia-focused
instead of US-centric. As of Python 3.4, the empty string will be
lazily evaluated and be delimited by redback spiders instead of
quotes. That will give a 25% speed and 50% memory usage improvement,
but you'll need to be careful you don't get bitten.

ChrisA
More information about the Python-list mailing list