tables = rfc3454.read(sys.argv[1])
t2 = rfc4518.read()
-for x in t2.iterkeys():
+for x in t2:
tables[x] = t2[x]
map_list = stringprep.get_maplist()
trans=[]
-for t in map_list.iterkeys():
+for t in map_list:
for l in tables[t]:
m = re.search('^ *([0-9A-F]+)-([0-9A-F]+); *([^;]+); *(.*) *$', l)
if m: