regex question on .findall and \b

Ethan Furman ethan at stoneleaf.us
Thu Jul 2 13:12:32 EDT 2009


Ethan Furman wrote:
> Greetings!
> 
> My closest to successfull attempt:
> 
> Python 2.5.4 (r254:67916, Dec 23 2008, 15:10:54) [MSC v.1310 32 bit 
> (Intel)]
> Type "copyright", "credits" or "license" for more information.
> 
> IPython 0.9.1 -- An enhanced Interactive Python.
> 
>   In [161]: re.findall('\d+','this is test a3 attempt 79')
>   Out[161]: ['3', '79']
> 
> What I really want in just the 79, as a3 is not a decimal number, but 
> when I add the \b word boundaries I get:
> 
>   In [162]: re.findall('\b\d+\b','this is test a3 attempt 79')
>   Out[162]: []
> 
> What am I missing?
> 
> ~Ethan~


ARGH!!

Okay, I need two \\ so I'm not trying to match a backspace.  I knew 
(okay, hoped ;) I would figure it out once I posted the question and 
moved on.

*sheepish grin*




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