isinstance() necessary and helpful, sometimes
Jason Orendorff
jason at jorendorff.com
Fri Jan 25 12:02:07 EST 2002
> However, there IS an approach that is even better, and we have
> just finished talking about it: *potentially idempotent adapting
> functions*! re.compile just happens to be one of those, thanks be:
>
> >>> a=re.compile(r'\d+')
> >>> b=re.compile(a)
> >>> a is b
> 1
This is not a documented feature.
## Jason Orendorff http://www.jorendorff.com/
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