[Tutor] error message

[Liam Clarke]

I was wondering about that also, I've only ever used .group() when
I've got named groups using (?P<foo>)

On Sun, 13 Feb 2005 21:04:22 -0500, Jacob S. <keridee at jayco.net> wrote:
> Dive into Python, an excellent tutorial has a case study on this very same
> topic.
> 
> The biggest problem that nobody has mentioned yet is the fact that group()
> will not have anything unless you explicitly tell it to group it.
> I.E.
> 
> pattern = r'(\d{3})-(\d{3})-(\d{4})'
> 
> You need the parenthesis to "capture" the groups.
> 
> BTW, dive into python can be found here:
> http://www.diveintopython.org/
> 
> HTH,
> Jacob
> 
> 
> > I'm dping something very simple in RE.
> >
> > Lets say I'm trying to match an American Phone number
> >
> > I write the code this way and try to match it:
> > import re
> > string = 'My phone is 410-995-1155'
> > pattern = r'\d{3}-\d{3}-\d{4}'
> > re.match(pattern,string).group()
> >
> > but I get this error message
> > Traceback (most recent call last):
> >  File "C:/Python24/findphone", line 4, in -toplevel-
> >    re.match(pattern,string).group()
> > AttributeError: 'NoneType' object has no attribute 'group'
> >
> >
> >
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