Python-сообщество

mylist = []
line = '1,23-25'
r1, r2 = line.split(",")
mylist.append(int(r1))
s, f = [int(x) for x in r2.replace("-", ",").split(",") ]
mylist.extend(range(s, f+1))
print mylist

def make_seq(s):
    for p in s.split(','):
        if '-' in p:
            a, b = p.split('-')
            for i in xrange(int(a), int(b) + 1):
                yield i
        else:
            yield int(p)
print list(make_seq('1,23-25'))