diff --git a/ox/text.py b/ox/text.py
index 9158de9..7630652 100644
--- a/ox/text.py
+++ b/ox/text.py
@@ -322,7 +322,7 @@ def find_string(string, string0='', string1 = ''):
 def parse_useragent(useragent):
     data = {}
     for key in UA_REGEXPS:
-        for alias, regexp in UA_ALIASES[key].iteritems():
+        for alias, regexp in UA_ALIASES[key].items():
             alias = alias if key == 'browser' else alias + ' \\1'
             useragent = re.sub(regexp, alias, useragent)                    
         for regexp in UA_REGEXPS[key]:
@@ -390,7 +390,7 @@ def wrap_string(string, length=80, separator='\n', balance=False):
         # can be achieved with a shorter line length
         lines = wrap_string(string, length, separator, False).split(separator)
         if len(lines) > 1:
-            while length > max(map(lambda x : len(x), words)):
+            while length > max([len(x) for x in words]):
                 length -= 1
                 if len(wrap_string(string, length, separator, False).split(separator)) > len(lines):
                     length += 1
@@ -588,4 +588,6 @@ def sort_string(string):
     return unicodedata.normalize('NFKD', string)
 
 def sorted_strings(strings, key=None):
-    return sorted(strings, cmp=lambda a, b: cmp(sort_string(a), sort_string(b)), key=key)
+    if not key:
+        key = lambda k: sort_string(k)
+    return sorted(strings, key=key)