Parsing info into a 2d list

[Bengt Richter]

On Thu, 21 Oct 2004 01:41:32 GMT, bokr at oz.net (Bengt Richter) wrote:
[...]
>----< slope.py >------------------------
[...]
>    def __init__(self, lines):
>        lines = iter(lines)
>        for name in 'ncols nrows xllcorner yllcorner cellsize'.split():
>            setattr(self, name, int(lines.next().split()[1]))
>        self.NoData = lines.next().split()[1]
>        mx = []
>        for r in xrange(self.nrows):
>            mx.append([float(v) for v in lines.next().split()])
>        list.__init__(self, mx)
>    def __str__(self):
>        return '\n'.join(['<Slopes object:']+map(str, list(self))+['>'])
>
I don't like that useless separate mx. Below seems better, since apparently the base class
supplies an initialized empty list (though I'm not sure exactly how that is implemented):

    def __init__(self, lines):
        lines = iter(lines)
        for name in 'ncols nrows xllcorner yllcorner cellsize'.split():
            setattr(self, name, int(lines.next().split()[1]))
        self.NoData = lines.next().split()[1]
        for r in xrange(self.nrows):
            self.append([float(v) for v in lines.next().split()])

Always room for improvement ;-)

Regards,
Bengt Richter