psss...I want to move from Perl to Python

[Rustom Mody]

On Sunday, January 31, 2016 at 7:27:06 AM UTC+5:30, Steven D'Aprano wrote:
> On Sunday 31 January 2016 09:18, Gregory Ewing wrote:
> 
> > Rustom Mody wrote:
> >> 1. One can use string-re's instead of compiled re's
> > 
> > And I gather that string REs are compiled on first use and
> > cached, so you don't lose much by using them most of the
> > time.
> 
> Correct. The re module keeps a cache of the last N regexes used, for some 
> value of N (possibly 10?) so for casual use there's no real point to pre-
> compiling other than fussiness.
> 
> But if you have an application that makes heavy-duty use of regexes, e.g. 
> some sort of parser with dozens of distinct regexes, you might not want to 
> rely on the cache.
> 
> 
> 
> -- 
> Steve

Python 3.4.3+ (default, Oct 14 2015, 16:03:50) 
[GCC 5.2.1 20151010] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> python.el: native completion setup loaded
>>> 
>>> import re
>>> re._MAXCACHE
512
>>> 

Have you ever seen a program that uses 512 re's?
I havent :-)