Iterating across a filtered list

[Gabriel Genellina]

En Tue, 13 Mar 2007 19:12:12 -0300, Arnaud Delobelle  
<arnodel at googlemail.com> escribió:

>> py> import re
>> py> x = re.compile("ijk")
>> py> y = re.compile("ijk")
>> py> x is y
>> True
>>
>> Both, separate calls, returned identical results. You can show the  
>> cache:
>
> OK I didn't realise this.  But even so each time there is the cost of
> looking up the regexp string in the cache dictionary.

Sure, it's much better to create the regex only once. Just to note that  
calling re.compile is not soooooooo bad as it could.

-- 
Gabriel Genellina