whats wrong with my reg expression ?

[Gert Cuykens]

thx

PS i also cant figure out what is wrong here ?

        rex=re.compile('^"(?P<value>[^"]*)"$',re.M)
        for v in l:
            v=rex.match(v).group('value')
            v=v.replace('""','"')
        return(l)

    v=rex.match(v).group('value')
AttributeError: 'NoneType' object has no attribute 'group'