def generator_n(start,end,step):
    start,end,step = int(start),int(end),int(step)
    for i in xrange(start,end,step):
        yield {"n" : "n_%d" % i}
        
def generator_change(start,end,step):
    start,end,step = int(start),int(end),int(step)
    for i in xrange(start,end,step):
        yield {"change" : "change_%d" % i}

def generator_date(start,end,step):
    start,end,step = int(start),int(end),int(step)
    for i in xrange(start,end,step):
        yield {"date" : "date_%d" % i}

def include_index(user, nick):
    return "Hello %s (aka %s)" % (nick,user)