How to convert numeric string ranges to a list in Python

Question

I would like to be able to convert a string such as \"1,2,5-7,10\" to a python list such as [1,2,5,6,7,10]. I looked around and found this, but I was wondering if there is a

Answer 1

Very short, and elegant (imho):

>>> txt = "1,2,5-7,10"
>>> # construct list of xranges
>>> xranges = [(lambda l: xrange(l[0], l[-1]+1))(map(int, r.split('-'))) for r in txt.split(',')]
>>> # flatten list of xranges
>>> [y for x in xranges for y in x]
[1, 2, 5, 6, 7, 10]