1def upgrader(cpt):
2    for sec in cpt.sections():
3        if sec == "system":
4            options = cpt.items(sec)
5            for it in options:
6                opt_split = it[0].split('.')
7                if len(opt_split) < 2: continue
8                new_sec_name = opt_split[1]
9                old_opt_name = opt_split[len(opt_split) - 1]
10                if "outputFifo" in new_sec_name:
11                    new_sec_name = new_sec_name.rstrip("outputFifo")
12                    new_sec_name += ".outputFifo"
13                    new_sec_name = "system.system.%s" %(new_sec_name)
14                    if not cpt.has_section(new_sec_name):
15                        cpt.add_section(new_sec_name)
16                    if old_opt_name == "size":
17                        cpt.set(new_sec_name, "_size", it[1])
18                    elif old_opt_name == "packets":
19                        cpt.set(new_sec_name, "fifosize", it[1])
20                    else:
21                        cpt.set(new_sec_name, old_opt_name, it[1])
22                    cpt.remove_option(sec, it[0])
23