diff --git a/thirdpart/captcha/__init__.py b/thirdpart/captcha/__init__.py
index 01ecc45967..bdcf76dbed 100644
--- a/thirdpart/captcha/__init__.py
+++ b/thirdpart/captcha/__init__.py
@@ -1,6 +1,6 @@
 import re
 
-VERSION = (0, 4, 0)
+VERSION = (0, 4, 3)
 
 
 def get_version(svn=False):
@@ -20,8 +20,8 @@ def pillow_required():
     except ImportError:
         try:
             import Image
-            import ImageDraw
-            import ImageFont
+            import ImageDraw  # NOQA
+            import ImageFont  # NOQA
         except ImportError:
             return True
 
diff --git a/thirdpart/captcha/conf/settings.py b/thirdpart/captcha/conf/settings.py
index c24196df84..e344bd9107 100644
--- a/thirdpart/captcha/conf/settings.py
+++ b/thirdpart/captcha/conf/settings.py
@@ -1,6 +1,5 @@
 import os
 from django.conf import settings
-from django.core.exceptions import ImproperlyConfigured
 
 CAPTCHA_FONT_PATH = getattr(settings, 'CAPTCHA_FONT_PATH', os.path.normpath(os.path.join(os.path.dirname(__file__), '..', 'fonts/Vera.ttf')))
 CAPTCHA_FONT_SIZE = getattr(settings, 'CAPTCHA_FONT_SIZE', 22)
@@ -19,9 +18,9 @@ CAPTCHA_IMAGE_BEFORE_FIELD = getattr(settings, 'CAPTCHA_IMAGE_BEFORE_FIELD', Tru
 CAPTCHA_DICTIONARY_MIN_LENGTH = getattr(settings, 'CAPTCHA_DICTIONARY_MIN_LENGTH', 0)
 CAPTCHA_DICTIONARY_MAX_LENGTH = getattr(settings, 'CAPTCHA_DICTIONARY_MAX_LENGTH', 99)
 if CAPTCHA_IMAGE_BEFORE_FIELD:
-    CAPTCHA_OUTPUT_FORMAT = getattr(settings, 'CAPTCHA_OUTPUT_FORMAT', u'%(image)s %(hidden_field)s %(text_field)s')
+    CAPTCHA_OUTPUT_FORMAT = getattr(settings, 'CAPTCHA_OUTPUT_FORMAT', '%(image)s %(hidden_field)s %(text_field)s')
 else:
-    CAPTCHA_OUTPUT_FORMAT = getattr(settings, 'CAPTCHA_OUTPUT_FORMAT', u'%(hidden_field)s %(text_field)s %(image)s')
+    CAPTCHA_OUTPUT_FORMAT = getattr(settings, 'CAPTCHA_OUTPUT_FORMAT', '%(hidden_field)s %(text_field)s %(image)s')
 
 CAPTCHA_TEST_MODE = getattr(settings, 'CAPTCHA_TEST_MODE', getattr(settings, 'CATPCHA_TEST_MODE', False))
 
diff --git a/thirdpart/captcha/fields.py b/thirdpart/captcha/fields.py
index 4dd2b374fc..05b7b7d2b8 100644
--- a/thirdpart/captcha/fields.py
+++ b/thirdpart/captcha/fields.py
@@ -1,12 +1,12 @@
 from captcha.conf import settings
-from django.conf import settings as django_settings
 from captcha.models import CaptchaStore, get_safe_now
 from django.core.exceptions import ImproperlyConfigured
-from django.core.urlresolvers import reverse,  NoReverseMatch
+from django.core.urlresolvers import reverse, NoReverseMatch
 from django.forms import ValidationError
 from django.forms.fields import CharField, MultiValueField
 from django.forms.widgets import TextInput, MultiWidget, HiddenInput
 from django.utils.translation import ugettext, ugettext_lazy
+from six import u
 
 
 class BaseCaptchaTextInput(MultiWidget):
@@ -38,14 +38,10 @@ class BaseCaptchaTextInput(MultiWidget):
         key = CaptchaStore.generate_key()
 
         # these can be used by format_output and render
-        self._value = [key, u'']
+        self._value = [key, u('')]
         self._key = key
         self.id_ = self.build_attrs(attrs).get('id', None)
 
-    def render(self, name, value, attrs=None):
-        #self.fetch_captcha_store(name, value, attrs)
-        return super(BaseCaptchaTextInput, self).render(name, self._value, attrs=attrs)
-
     def id_for_label(self, id_):
         if id_:
             return id_ + '_1'
@@ -76,6 +72,7 @@ class CaptchaTextInput(BaseCaptchaTextInput):
 
     def format_output(self, rendered_widgets):
         hidden_field, text_field = rendered_widgets
+        text_field = text_field.replace('<input', '<input autocomplete="off"')
         return self._args['output_format'] % {
             'image': self.image_and_audio,
             'hidden_field': hidden_field,
@@ -88,8 +85,6 @@ class CaptchaTextInput(BaseCaptchaTextInput):
         self.image_and_audio = '<img src="%s" alt="captcha" class="captcha" />' % self.image_url()
         if settings.CAPTCHA_FLITE_PATH:
             self.image_and_audio = '<a href="%s" title="%s">%s</a>' % (self.audio_url(), ugettext('Play CAPTCHA as audio file'), self.image_and_audio)
-
-
         return super(CaptchaTextInput, self).render(name, self._value, attrs=attrs)
 
 
diff --git a/thirdpart/captcha/helpers.py b/thirdpart/captcha/helpers.py
index cc5ab61450..7a430a6c57 100644
--- a/thirdpart/captcha/helpers.py
+++ b/thirdpart/captcha/helpers.py
@@ -2,6 +2,7 @@
 import random
 from captcha.conf import settings
 from django.core.urlresolvers import reverse
+from six import u
 
 
 def math_challenge():
@@ -15,14 +16,14 @@ def math_challenge():
 
 
 def random_char_challenge():
-    chars, ret = u'abcdefghijklmnopqrstuvwxyz', u''
+    chars, ret = u('abcdefghijklmnopqrstuvwxyz'), u('')
     for i in range(settings.CAPTCHA_LENGTH):
         ret += random.choice(chars)
     return ret.upper(), ret
 
 
 def unicode_challenge():
-    chars, ret = u'äàáëéèïíîöóòüúù', u''
+    chars, ret = u('äàáëéèïíîöóòüúù'), u('')
     for i in range(settings.CAPTCHA_LENGTH):
         ret += random.choice(chars)
     return ret.upper(), ret
@@ -70,6 +71,10 @@ def noise_dots(draw, image):
     return draw
 
 
+def noise_null(draw, image):
+    return draw
+
+
 def post_smooth(image):
     try:
         import ImageFilter
diff --git a/thirdpart/captcha/locale/bg/LC_MESSAGES/django.po b/thirdpart/captcha/locale/bg/LC_MESSAGES/django.po
new file mode 100644
index 0000000000..b384c573bd
--- /dev/null
+++ b/thirdpart/captcha/locale/bg/LC_MESSAGES/django.po
@@ -0,0 +1,31 @@
+# django-simple-captcha Bulgarian translation
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the django-simple-captcha package.
+# Venelin Stoykov <vkstoykov@gmail.com>, 2014.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: django-simple-captcha 0.4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-02-10 14:43+0200\n"
+"PO-Revision-Date: 2014-02-10 15:00+0200\n"
+"Last-Translator: Venelin Stoykov <vkstoykov@gmail.com>\n"
+"Language-Team: bg <vkstoykov@gmail.com>\n"
+"Language: bg\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1)\n"
+
+#: fields.py:91
+msgid "Play CAPTCHA as audio file"
+msgstr "Чуй текста като аудио файл"
+
+#: fields.py:106 fields.py:135 tests/tests.py:99 tests/tests.py:239
+#: tests/tests.py:246
+msgid "Invalid CAPTCHA"
+msgstr "Сгрешен текст"
+
+#: tests/tests.py:125
+msgid "This field is required."
+msgstr "Това поле е задължително"
diff --git a/thirdpart/captcha/locale/cs/LC_MESSAGES/django.po b/thirdpart/captcha/locale/cs/LC_MESSAGES/django.po
index f633cfee65..21ef0297e8 100644
--- a/thirdpart/captcha/locale/cs/LC_MESSAGES/django.po
+++ b/thirdpart/captcha/locale/cs/LC_MESSAGES/django.po
@@ -11,7 +11,7 @@ msgstr ""
 "PO-Revision-Date: 2012-10-09 07:08+0200\n"
 "Last-Translator: Beda Kosata <bedrich.kosata@nic.cz>\n"
 "Language-Team: Czech <>\n"
-"Language: \n"
+"Language: cs\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/thirdpart/captcha/locale/de/LC_MESSAGES/django.po b/thirdpart/captcha/locale/de/LC_MESSAGES/django.po
index b38051e3b8..286ce653ad 100644
--- a/thirdpart/captcha/locale/de/LC_MESSAGES/django.po
+++ b/thirdpart/captcha/locale/de/LC_MESSAGES/django.po
@@ -11,6 +11,7 @@ msgstr ""
 "PO-Revision-Date: 2013-07-16 12:10+0100\n"
 "Last-Translator: Patrick Lauber <patrick.lauber@divio.ch>\n"
 "Language-Team: DE <digi@treepy.com>\n"
+"Language: de\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/thirdpart/captcha/locale/es/LC_MESSAGES/django.po b/thirdpart/captcha/locale/es/LC_MESSAGES/django.po
new file mode 100644
index 0000000000..bd44d3ee58
--- /dev/null
+++ b/thirdpart/captcha/locale/es/LC_MESSAGES/django.po
@@ -0,0 +1,32 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: django-simple-captcha\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-07-16 12:06+0200\n"
+"PO-Revision-Date: 2014-05-20 21:22+0100\n"
+"Last-Translator: https://github.com/dragosdobrota\n"
+"Language-Team: es\n"
+"Language: es\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+"X-Generator: Poedit 1.6.5\n"
+
+#: fields.py:90
+msgid "Play CAPTCHA as audio file"
+msgstr "Reproducir CAPTCHA de audio"
+
+#: fields.py:105 fields.py:134 tests/tests.py:99 tests/tests.py:239
+#: tests/tests.py:246
+msgid "Invalid CAPTCHA"
+msgstr "CAPTCHA no válido"
+
+#: tests/tests.py:125
+msgid "This field is required."
+msgstr "Este campo es obligatorio."
diff --git a/thirdpart/captcha/locale/fr/LC_MESSAGES/django.po b/thirdpart/captcha/locale/fr/LC_MESSAGES/django.po
index 28f990f32c..5a07f5d7d1 100644
--- a/thirdpart/captcha/locale/fr/LC_MESSAGES/django.po
+++ b/thirdpart/captcha/locale/fr/LC_MESSAGES/django.po
@@ -3,7 +3,6 @@
 # This file is distributed under the same license as the PACKAGE package.
 # Patrick Samson <maxcom@laposte.net>, 2010.
 #
-#, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: django-simple-captcha 0.2.0\n"
@@ -11,8 +10,8 @@ msgstr ""
 "POT-Creation-Date: 2012-07-25 11:44+0300\n"
 "PO-Revision-Date: 2010-09-16 12:16+0200\n"
 "Last-Translator: Patrick Samson <maxcom@laposte.net>\n"
-"Language-Team: LANGUAGE <LL@li.org>\n"
-"Language: \n"
+"Language-Team: fr <maxcom@laposte.net>\n"
+"Language: fr\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/thirdpart/captcha/locale/it/LC_MESSAGES/django.po b/thirdpart/captcha/locale/it/LC_MESSAGES/django.po
index 8cd7724508..03a5851f22 100644
--- a/thirdpart/captcha/locale/it/LC_MESSAGES/django.po
+++ b/thirdpart/captcha/locale/it/LC_MESSAGES/django.po
@@ -3,7 +3,6 @@
 # This file is distributed under the same license as the PACKAGE package.
 # Arjuna Del Toso <stupidate@gmail.net>, 2012
 #
-#, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: django-simple-captcha 0.3.6\n"
@@ -12,6 +11,8 @@ msgstr ""
 "PO-Revision-Date: 2012-11-14 02:53+0000\n"
 "Last-Translator: Arjuna Del Toso <stupidate@gmail.com>\n"
 "MIME-Version: 1.0\n"
+"Language-Team: Arjuna Del Toso <stupidate@gmail.com>\n"
+"Language: it\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n>1;\n"
diff --git a/thirdpart/captcha/locale/ja/LC_MESSAGES/django.po b/thirdpart/captcha/locale/ja/LC_MESSAGES/django.po
new file mode 100644
index 0000000000..f2aafbb563
--- /dev/null
+++ b/thirdpart/captcha/locale/ja/LC_MESSAGES/django.po
@@ -0,0 +1,31 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# Keisuke URAGO <bravo@resourcez.org>, 2014.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: django-simple-captcha\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-02-13 07:11+0900\n"
+"PO-Revision-Date: 2014-02-13 07:11+0900\n"
+"Last-Translator: Keisuke URAGO <bravo@resourcez.org>\n"
+"Language-Team: Keisuke URAGO <bravo@resourcez.org>\n"
+"Language: ja\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
+
+#: fields.py:90
+msgid "Play CAPTCHA as audio file"
+msgstr "CAPTCHAをオーディオで読み上げる"
+
+#: fields.py:105 fields.py:134 tests/tests.py:99 tests/tests.py:239
+#: tests/tests.py:246
+msgid "Invalid CAPTCHA"
+msgstr "CAPTCHAの値が違っています"
+
+#: tests/tests.py:125
+msgid "This field is required."
+msgstr "この項目は必須です"
diff --git a/thirdpart/captcha/locale/nl/LC_MESSAGES/django.po b/thirdpart/captcha/locale/nl/LC_MESSAGES/django.po
index 3b0162ce55..bf69a6a9bd 100644
--- a/thirdpart/captcha/locale/nl/LC_MESSAGES/django.po
+++ b/thirdpart/captcha/locale/nl/LC_MESSAGES/django.po
@@ -3,15 +3,16 @@
 # This file is distributed under the same license as the PACKAGE package.
 # Leon de Rijke <leon@cmsworks.nl>, 2013.
 #
-#, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: django-simple-captcha 0.3.6\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2013-02-15 13:26+0100\n"
-"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"PO-Revision-Date: 2013-02-15 13:26+0100\n"
 "Last-Translator: Leon de Rijke <leon@cmsworks.nl>\n"
 "MIME-Version: 1.0\n"
+"Language-Team: Leon de Rijke <leon@cmsworks.nl>\n"
+"Language: nl\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=(n != 1)\n"
diff --git a/thirdpart/captcha/locale/pl/LC_MESSAGES/django.po b/thirdpart/captcha/locale/pl/LC_MESSAGES/django.po
index 86d65c1833..5bcbf4018d 100644
--- a/thirdpart/captcha/locale/pl/LC_MESSAGES/django.po
+++ b/thirdpart/captcha/locale/pl/LC_MESSAGES/django.po
@@ -3,16 +3,15 @@
 # This file is distributed under the same license as the django-simple-captcha package.
 # Sławomir Zborowski <slawomir.zborowski@hotmail.com>, 2013.
 #
-#, fuzzy
 msgid ""
 msgstr ""
-"Project-Id-Version: PACKAGE VERSION\n"
+"Project-Id-Version: django-simple-captcha 0.3.6\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2013-08-18 18:49+0200\n"
 "PO-Revision-Date: 2013-08-18 18:52+0200\n"
 "Last-Translator: Sławomir Zborowski <slawomir.zborowski@hotmail.com>\n"
 "Language-Team: Polisch\n"
-"Language: \n"
+"Language: pl\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/thirdpart/captcha/locale/pt_BR/LC_MESSAGES/django.po b/thirdpart/captcha/locale/pt_BR/LC_MESSAGES/django.po
index 4dbecd5ef4..47e84f1224 100644
--- a/thirdpart/captcha/locale/pt_BR/LC_MESSAGES/django.po
+++ b/thirdpart/captcha/locale/pt_BR/LC_MESSAGES/django.po
@@ -3,7 +3,6 @@
 # This file is distributed under the same license as the PACKAGE package.
 # Alisson Patricio <eu@alisson.net>, 2013.
 #
-#, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: django-simple-captcha 0.3.7\n"
@@ -11,7 +10,8 @@ msgstr ""
 "POT-Creation-Date: 2013-05-18 10:58-0300\n"
 "PO-Revision-Date: 2013-05-18 13:12-0300\n"
 "Last-Translator: Alisson Patricio <eu@alisson.net>\n"
-"Language: Portuguese (Brazilian)\n"
+"Language-Team: Alisson Patricio <eu@alisson.net>\n"
+"Language: pt_br\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/thirdpart/captcha/locale/ru/LC_MESSAGES/django.po b/thirdpart/captcha/locale/ru/LC_MESSAGES/django.po
index 4c3c8aaf72..5c6a9f3836 100644
--- a/thirdpart/captcha/locale/ru/LC_MESSAGES/django.po
+++ b/thirdpart/captcha/locale/ru/LC_MESSAGES/django.po
@@ -3,16 +3,15 @@
 # This file is distributed under the same license as the PACKAGE package.
 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
 #
-#, fuzzy
 msgid ""
 msgstr ""
-"Project-Id-Version: PACKAGE VERSION\n"
+"Project-Id-Version: django-simple-captcha 0.3.7\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2012-07-25 11:17+0300\n"
-"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
-"Language-Team: LANGUAGE <LL@li.org>\n"
-"Language: \n"
+"PO-Revision-Date: 2012-07-25 11:17+0300\n"
+"Last-Translator: \n"
+"Language-Team: ru <LL@li.org>\n"
+"Language: ru\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/thirdpart/captcha/locale/sk/LC_MESSAGES/django.po b/thirdpart/captcha/locale/sk/LC_MESSAGES/django.po
new file mode 100644
index 0000000000..f3ce9b33a4
--- /dev/null
+++ b/thirdpart/captcha/locale/sk/LC_MESSAGES/django.po
@@ -0,0 +1,32 @@
+# Slovak translation of django-simple-captcha.
+# Copyright (C) 2013 THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# Pavol Otto <pavol.otto@nic.cz>, 2013.
+#
+
+msgid ""
+msgstr ""
+"Project-Id-Version: django-simple-captcha 0.3.7\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-10-15 17:16+0200\n"
+"PO-Revision-Date: 2013-10-15 17:16+0200\n"
+"Last-Translator: Pavol Otto <pavol.otto@nic.cz>\n"
+"Language-Team: SK\n"
+"Language: sk\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;\n"
+
+#: fields.py:90
+msgid "Play CAPTCHA as audio file"
+msgstr "Prehrať captchu ako audio súbor"
+
+#: fields.py:105 fields.py:134 tests/tests.py:99 tests/tests.py:239
+#: tests/tests.py:246
+msgid "Invalid CAPTCHA"
+msgstr "Neplatná CAPTCHA"
+
+#: tests/tests.py:125
+msgid "This field is required."
+msgstr "Toto pole je povinné."
diff --git a/thirdpart/captcha/locale/tr/LC_MESSAGES/django.po b/thirdpart/captcha/locale/tr/LC_MESSAGES/django.po
index 8c0edb2536..ed35e2bd86 100644
--- a/thirdpart/captcha/locale/tr/LC_MESSAGES/django.po
+++ b/thirdpart/captcha/locale/tr/LC_MESSAGES/django.po
@@ -3,7 +3,6 @@
 # This file is distributed under the same license as the PACKAGE package.
 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
 #
-#, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: django-simple-captcha 0.3.6\n"
@@ -11,7 +10,8 @@ msgstr ""
 "POT-Creation-Date: 2013-01-19 16:33-0200\n"
 "PO-Revision-Date: 2013-01-19 20:52+0200\n"
 "Last-Translator: Gokmen Gorgen <gokmen@alageek.com>\n"
-"Language: \n"
+"Language-Team: TR Gokmen Gorgen <gokmen@alageek.com>\n"
+"Language: tr\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/thirdpart/captcha/locale/uk/LC_MESSAGES/django.po b/thirdpart/captcha/locale/uk/LC_MESSAGES/django.po
new file mode 100644
index 0000000000..50c505e92e
--- /dev/null
+++ b/thirdpart/captcha/locale/uk/LC_MESSAGES/django.po
@@ -0,0 +1,32 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: django-simple-captcha 0.3.6\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-02-21 22:05+0200\n"
+"PO-Revision-Date: 2014-02-21 22:05+0200\n"
+"Last-Translator: @FuriousCoder\n"
+"Language-Team: uk @FuriousCoder\n"
+"Language: uk\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n"
+"%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);\n"
+
+#: fields.py:91
+msgid "Play CAPTCHA as audio file"
+msgstr "Відтворити CAPTCHA як аудіо файл."
+
+#: fields.py:106 fields.py:135 tests/tests.py:99 tests/tests.py:239
+#: tests/tests.py:246
+msgid "Invalid CAPTCHA"
+msgstr "Неправильна відповідь."
+
+#: tests/tests.py:125
+msgid "This field is required."
+msgstr "Це поле є обов'язковим."
diff --git a/thirdpart/captcha/locale/zh_CN/LC_MESSAGES/django.po b/thirdpart/captcha/locale/zh_CN/LC_MESSAGES/django.po
index 85f28265d3..e85dcf95e0 100644
--- a/thirdpart/captcha/locale/zh_CN/LC_MESSAGES/django.po
+++ b/thirdpart/captcha/locale/zh_CN/LC_MESSAGES/django.po
@@ -3,15 +3,15 @@
 # This file is distributed under the same license as the PACKAGE package.
 # Ming Chen <c.ming@live.com>, 2013.
 #
-#, fuzzy
 msgid ""
 msgstr ""
 "Project-Id-Version: django-simple-captcha 0.3.6\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2013-03-01 05:04+0800\n"
-"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"PO-Revision-Date: 2013-03-01 05:04+0800\n"
 "Last-Translator: Ming Chen <c.ming@live.com>\n"
-"Language: \n"
+"Language-Team: zh_cn Ming Chen <c.ming@live.com>\n"
+"Language: zh_cn\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/thirdpart/captcha/management/commands/captcha_clean.py b/thirdpart/captcha/management/commands/captcha_clean.py
index 1d22f11443..88f28e402f 100644
--- a/thirdpart/captcha/management/commands/captcha_clean.py
+++ b/thirdpart/captcha/management/commands/captcha_clean.py
@@ -11,15 +11,15 @@ class Command(BaseCommand):
         verbose = int(options.get('verbosity'))
         expired_keys = CaptchaStore.objects.filter(expiration__lte=get_safe_now()).count()
         if verbose >= 1:
-            print "Currently %d expired hashkeys" % expired_keys
+            print("Currently %d expired hashkeys" % expired_keys)
         try:
             CaptchaStore.remove_expired()
         except:
             if verbose >= 1:
-                print "Unable to delete expired hashkeys."
+                print("Unable to delete expired hashkeys.")
             sys.exit(1)
         if verbose >= 1:
             if expired_keys > 0:
-                print "%d expired hashkeys removed." % expired_keys
+                print("%d expired hashkeys removed." % expired_keys)
             else:
-                print "No keys to remove."
+                print("No keys to remove.")
diff --git a/thirdpart/captcha/migrations/0001_initial.py b/thirdpart/captcha/migrations/0001_initial.py
index 389897b447..c842039471 100644
--- a/thirdpart/captcha/migrations/0001_initial.py
+++ b/thirdpart/captcha/migrations/0001_initial.py
@@ -1,39 +1,26 @@
-# encoding: utf-8
-import datetime
-from south.db import db
-from south.v2 import SchemaMigration
-from django.db import models
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
 
-class Migration(SchemaMigration):
-
-    def forwards(self, orm):
-        
-        # Adding model 'CaptchaStore'
-        db.create_table('captcha_captchastore', (
-            ('id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
-            ('challenge', self.gf('django.db.models.fields.CharField')(max_length=32)),
-            ('response', self.gf('django.db.models.fields.CharField')(max_length=32)),
-            ('hashkey', self.gf('django.db.models.fields.CharField')(unique=True, max_length=40)),
-            ('expiration', self.gf('django.db.models.fields.DateTimeField')()),
-        ))
-        db.send_create_signal('captcha', ['CaptchaStore'])
+from django.db import models, migrations
 
 
-    def backwards(self, orm):
-        
-        # Deleting model 'CaptchaStore'
-        db.delete_table('captcha_captchastore')
+class Migration(migrations.Migration):
 
+    dependencies = [
+    ]
 
-    models = {
-        'captcha.captchastore': {
-            'Meta': {'object_name': 'CaptchaStore'},
-            'challenge': ('django.db.models.fields.CharField', [], {'max_length': '32'}),
-            'expiration': ('django.db.models.fields.DateTimeField', [], {}),
-            'hashkey': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '40'}),
-            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
-            'response': ('django.db.models.fields.CharField', [], {'max_length': '32'})
-        }
-    }
-
-    complete_apps = ['captcha']
+    operations = [
+        migrations.CreateModel(
+            name='CaptchaStore',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('challenge', models.CharField(max_length=32)),
+                ('response', models.CharField(max_length=32)),
+                ('hashkey', models.CharField(unique=True, max_length=40)),
+                ('expiration', models.DateTimeField()),
+            ],
+            options={
+            },
+            bases=(models.Model,),
+        ),
+    ]
diff --git a/thirdpart/captcha/migrations/__init__.py b/thirdpart/captcha/migrations/__init__.py
index e69de29bb2..1276b35c86 100644
--- a/thirdpart/captcha/migrations/__init__.py
+++ b/thirdpart/captcha/migrations/__init__.py
@@ -0,0 +1,21 @@
+"""
+Django migrations for django-simple-captcha app
+
+This package does not contain South migrations.  South migrations can be found
+in the ``south_migrations`` package.
+"""
+
+SOUTH_ERROR_MESSAGE = """\n
+For South support, customize the SOUTH_MIGRATION_MODULES setting like so:
+
+    SOUTH_MIGRATION_MODULES = {
+        'captcha': 'captcha.south_migrations',
+    }
+"""
+
+# Ensure the user is not using Django 1.6 or below with South
+try:
+    from django.db import migrations  # noqa
+except ImportError:
+    from django.core.exceptions import ImproperlyConfigured
+    raise ImproperlyConfigured(SOUTH_ERROR_MESSAGE)
\ No newline at end of file
diff --git a/thirdpart/captcha/models.py b/thirdpart/captcha/models.py
index 2bc62d30df..8263b5bf90 100644
--- a/thirdpart/captcha/models.py
+++ b/thirdpart/captcha/models.py
@@ -40,10 +40,9 @@ class CaptchaStore(models.Model):
     expiration = models.DateTimeField(blank=False)
 
     def save(self, *args, **kwargs):
-        #import ipdb; ipdb.set_trace()
+
         self.response = six.text_type(self.response).lower()
         if not self.expiration:
-            #self.expiration = datetime.datetime.now() + datetime.timedelta(minutes=int(captcha_settings.CAPTCHA_TIMEOUT))
             self.expiration = get_safe_now() + datetime.timedelta(minutes=int(captcha_settings.CAPTCHA_TIMEOUT))
         if not self.hashkey:
             key_ = unicodedata.normalize('NFKD', str(randrange(0, MAX_RANDOM_KEY)) + str(time.time()) + six.text_type(self.challenge)).encode('ascii', 'ignore') + unicodedata.normalize('NFKD', six.text_type(self.response)).encode('ascii', 'ignore')
diff --git a/thirdpart/captcha/south_migrations/0001_initial.py b/thirdpart/captcha/south_migrations/0001_initial.py
new file mode 100644
index 0000000000..389897b447
--- /dev/null
+++ b/thirdpart/captcha/south_migrations/0001_initial.py
@@ -0,0 +1,39 @@
+# encoding: utf-8
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+        
+        # Adding model 'CaptchaStore'
+        db.create_table('captcha_captchastore', (
+            ('id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
+            ('challenge', self.gf('django.db.models.fields.CharField')(max_length=32)),
+            ('response', self.gf('django.db.models.fields.CharField')(max_length=32)),
+            ('hashkey', self.gf('django.db.models.fields.CharField')(unique=True, max_length=40)),
+            ('expiration', self.gf('django.db.models.fields.DateTimeField')()),
+        ))
+        db.send_create_signal('captcha', ['CaptchaStore'])
+
+
+    def backwards(self, orm):
+        
+        # Deleting model 'CaptchaStore'
+        db.delete_table('captcha_captchastore')
+
+
+    models = {
+        'captcha.captchastore': {
+            'Meta': {'object_name': 'CaptchaStore'},
+            'challenge': ('django.db.models.fields.CharField', [], {'max_length': '32'}),
+            'expiration': ('django.db.models.fields.DateTimeField', [], {}),
+            'hashkey': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '40'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'response': ('django.db.models.fields.CharField', [], {'max_length': '32'})
+        }
+    }
+
+    complete_apps = ['captcha']
diff --git a/thirdpart/captcha/south_migrations/__init__.py b/thirdpart/captcha/south_migrations/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/thirdpart/captcha/tests/__init__.py b/thirdpart/captcha/tests/__init__.py
index b45c48cd9c..8ce44e15b5 100644
--- a/thirdpart/captcha/tests/__init__.py
+++ b/thirdpart/captcha/tests/__init__.py
@@ -1 +1 @@
-from .tests import CaptchaCase, trivial_challenge
+from .tests import CaptchaCase, trivial_challenge  # NOQA
diff --git a/thirdpart/captcha/tests/tests.py b/thirdpart/captcha/tests/tests.py
index 7c93e6855c..a2b26a16e9 100644
--- a/thirdpart/captcha/tests/tests.py
+++ b/thirdpart/captcha/tests/tests.py
@@ -12,6 +12,7 @@ import json
 import re
 import six
 import os
+from six import u
 
 
 class CaptchaCase(TestCase):
@@ -42,7 +43,6 @@ class CaptchaCase(TestCase):
         settings.CAPTCHA_WORDS_DICTIONARY = self.__current_settings_dictionary
         settings.CAPTCHA_PUNCTUATION = self.__current_settings_punctuation
 
-
     def __extract_hash_and_response(self, r):
         hash_ = re.findall(r'value="([0-9a-f]+)"', str(r.content))[0]
         response = CaptchaStore.objects.get(hashkey=hash_).response
@@ -175,7 +175,7 @@ class CaptchaCase(TestCase):
 
     def testOutputFormat(self):
         for urlname in ('captcha-test', 'captcha-test-model-form'):
-            settings.CAPTCHA_OUTPUT_FORMAT = u'%(image)s<p>Hello, captcha world</p>%(hidden_field)s%(text_field)s'
+            settings.CAPTCHA_OUTPUT_FORMAT = u('%(image)s<p>Hello, captcha world</p>%(hidden_field)s%(text_field)s')
             r = self.client.get(reverse(urlname))
             self.assertEqual(r.status_code, 200)
             self.assertTrue('<p>Hello, captcha world</p>' in str(r.content))
@@ -186,7 +186,7 @@ class CaptchaCase(TestCase):
             # we turn on DEBUG because CAPTCHA_OUTPUT_FORMAT is only checked debug
 
             django_settings.DEBUG = True
-            settings.CAPTCHA_OUTPUT_FORMAT = u'%(image)s'
+            settings.CAPTCHA_OUTPUT_FORMAT = u('%(image)s')
             try:
                 self.client.get(reverse(urlname))
                 self.fail()
@@ -195,14 +195,14 @@ class CaptchaCase(TestCase):
         django_settings.DEBUG = __current_settings_debug
 
     def testPerFormFormat(self):
-        settings.CAPTCHA_OUTPUT_FORMAT = u'%(image)s testCustomFormatString %(hidden_field)s %(text_field)s'
+        settings.CAPTCHA_OUTPUT_FORMAT = u('%(image)s testCustomFormatString %(hidden_field)s %(text_field)s')
         r = self.client.get(reverse('captcha-test'))
         self.assertTrue('testCustomFormatString' in str(r.content))
         r = self.client.get(reverse('test_per_form_format'))
         self.assertTrue('testPerFieldCustomFormatString' in str(r.content))
 
     def testIssue31ProperLabel(self):
-        settings.CAPTCHA_OUTPUT_FORMAT = u'%(image)s %(hidden_field)s %(text_field)s'
+        settings.CAPTCHA_OUTPUT_FORMAT = u('%(image)s %(hidden_field)s %(text_field)s')
         r = self.client.get(reverse('captcha-test'))
         self.assertTrue('<label for="id_captcha_1"' in str(r.content))
 
@@ -226,12 +226,12 @@ class CaptchaCase(TestCase):
         This test covers a default django field and widget behavior
         It not assert anything. If something is wrong it will raise a error!
         """
-        settings.CAPTCHA_OUTPUT_FORMAT = u'%(image)s %(hidden_field)s %(text_field)s'
+        settings.CAPTCHA_OUTPUT_FORMAT = u('%(image)s %(hidden_field)s %(text_field)s')
         widget = CaptchaTextInput(attrs={'class': 'required'})
         CaptchaField(widget=widget)
 
     def testTestMode_Issue15(self):
-        __current_test_mode_setting  = settings.CAPTCHA_TEST_MODE
+        __current_test_mode_setting = settings.CAPTCHA_TEST_MODE
         settings.CAPTCHA_TEST_MODE = False
         r = self.client.get(reverse('captcha-test'))
         self.assertEqual(r.status_code, 200)
@@ -270,11 +270,30 @@ class CaptchaCase(TestCase):
         self.assertEqual(r.status_code, 200)
         hash_, response = self.__extract_hash_and_response(r)
 
-
         r = self.client.post(reverse('captcha-test-non-required'), dict(captcha_0=hash_, captcha_1=response, subject='xxx', sender='asasd@asdasd.com'))
         self.assertEqual(r.status_code, 200)
         self.assertTrue(str(r.content).find('Form validated') > 0)
 
+    def test_autocomplete_off(self):
+        r = self.client.get(reverse('captcha-test'))
+        self.assertTrue('<input autocomplete="off" ' in six.text_type(r.content))
+
+    def test_autocomplete_not_on_hidden_input(self):
+        r = self.client.get(reverse('captcha-test'))
+        self.assertFalse('autocomplete="off" type="hidden" name="captcha_0"' in six.text_type(r.content))
+        self.assertFalse('autocomplete="off" id="id_captcha_0" name="captcha_0" type="hidden"' in six.text_type(r.content))
+
+    def test_transparent_background(self):
+        __current_test_mode_setting = settings.CAPTCHA_BACKGROUND_COLOR
+        settings.CAPTCHA_BACKGROUND_COLOR = "transparent"
+        for key in [store.hashkey for store in six.itervalues(self.stores)]:
+            response = self.client.get(reverse('captcha-image', kwargs=dict(key=key)))
+            self.assertEqual(response.status_code, 200)
+            self.assertTrue(response.has_header('content-type'))
+            self.assertEqual(response._headers.get('content-type'), ('Content-Type', 'image/png'))
+
+        settings.CAPTCHA_BACKGROUND_COLOR = __current_test_mode_setting
+
 
 def trivial_challenge():
     return 'trivial', 'trivial'
diff --git a/thirdpart/captcha/tests/urls.py b/thirdpart/captcha/tests/urls.py
index 459cfc9838..c2b2b73ea4 100644
--- a/thirdpart/captcha/tests/urls.py
+++ b/thirdpart/captcha/tests/urls.py
@@ -3,7 +3,8 @@ try:
 except ImportError:
     from django.conf.urls.defaults import url, patterns, include
 
-urlpatterns = patterns('',
+urlpatterns = patterns(
+    '',
     url(r'test/$', 'captcha.tests.views.test', name='captcha-test'),
     url(r'test-modelform/$', 'captcha.tests.views.test_model_form', name='captcha-test-model-form'),
     url(r'test2/$', 'captcha.tests.views.test_custom_error_message', name='captcha-test-custom-error-message'),
diff --git a/thirdpart/captcha/tests/views.py b/thirdpart/captcha/tests/views.py
index 77d81c2915..06f6e3cf66 100644
--- a/thirdpart/captcha/tests/views.py
+++ b/thirdpart/captcha/tests/views.py
@@ -3,7 +3,7 @@ from captcha.fields import CaptchaField
 from django.template import RequestContext, loader
 from django.http import HttpResponse
 from django.contrib.auth.models import User
-
+from six import u
 
 TEST_TEMPLATE = r'''
 {% load url from future %}
@@ -30,6 +30,7 @@ TEST_TEMPLATE = r'''
 </html>
 '''
 
+
 def _test(request, form_class):
     passed = False
     if request.POST:
@@ -80,8 +81,10 @@ def test_per_form_format(request):
             help_text='asdasd',
             error_messages=dict(invalid='TEST CUSTOM ERROR MESSAGE'),
             output_format=(
-                u'%(image)s testPerFieldCustomFormatString '
-                u'%(hidden_field)s %(text_field)s'
+                u(
+                    '%(image)s testPerFieldCustomFormatString '
+                    '%(hidden_field)s %(text_field)s'
+                )
             )
         )
     return _test(request, CaptchaTestFormatForm)
diff --git a/thirdpart/captcha/urls.py b/thirdpart/captcha/urls.py
index d6472be8d0..9bc99466af 100644
--- a/thirdpart/captcha/urls.py
+++ b/thirdpart/captcha/urls.py
@@ -3,7 +3,8 @@ try:
 except ImportError:
     from django.conf.urls.defaults import patterns, url
 
-urlpatterns = patterns('captcha.views',
+urlpatterns = patterns(
+    'captcha.views',
     url(r'image/(?P<key>\w+)/$', 'captcha_image', name='captcha-image', kwargs={'scale': 1}),
     url(r'image/(?P<key>\w+)@2/$', 'captcha_image', name='captcha-image-2x', kwargs={'scale': 2}),
     url(r'audio/(?P<key>\w+)/$', 'captcha_audio', name='captcha-audio'),
diff --git a/thirdpart/captcha/views.py b/thirdpart/captcha/views.py
index a0fe1ed88f..3b096f2d4a 100644
--- a/thirdpart/captcha/views.py
+++ b/thirdpart/captcha/views.py
@@ -1,4 +1,4 @@
-from captcha.conf import settings
+from captcha.conf import settings
 from captcha.helpers import captcha_image_url
 from captcha.models import CaptchaStore
 from django.http import HttpResponse, Http404
@@ -27,6 +27,15 @@ except ImportError:
     from django.utils import simplejson as json
 
 NON_DIGITS_RX = re.compile('[^\d]')
+# Distance of the drawn text from the top of the captcha image
+from_top = 4
+
+
+def getsize(font, text):
+    if hasattr(font, 'getoffset'):
+        return [x + y for x, y in zip(font.getsize(text), font.getoffset(text))]
+    else:
+        return font.getsize(text)
 
 
 def captcha_image(request, key, scale=1):
@@ -38,9 +47,12 @@ def captcha_image(request, key, scale=1):
     else:
         font = ImageFont.load(settings.CAPTCHA_FONT_PATH)
 
-    size = font.getsize(text)
-    size = (size[0] * 2, int(size[1] * 1.2))
-    image = Image.new('RGB', size, settings.CAPTCHA_BACKGROUND_COLOR)
+    size = getsize(font, text)
+    size = (size[0] * 2, int(size[1] * 1.4))
+    if settings.CAPTCHA_BACKGROUND_COLOR == "transparent":
+        image = Image.new('RGBA', size)
+    else:
+        image = Image.new('RGB', size, settings.CAPTCHA_BACKGROUND_COLOR)
 
     try:
         PIL_VERSION = int(NON_DIGITS_RX.sub('', Image.VERSION))
@@ -56,7 +68,7 @@ def captcha_image(request, key, scale=1):
             charlist.append(char)
     for char in charlist:
         fgimage = Image.new('RGB', size, settings.CAPTCHA_FOREGROUND_COLOR)
-        charimage = Image.new('L', font.getsize(' %s ' % char), '#000000')
+        charimage = Image.new('L', getsize(font, ' %s ' % char), '#000000')
         chardraw = ImageDraw.Draw(charimage)
         chardraw.text((0, 0), ' %s ' % char, font=font, fill='#ffffff')
         if settings.CAPTCHA_LETTER_ROTATION:
@@ -67,7 +79,7 @@ def captcha_image(request, key, scale=1):
         charimage = charimage.crop(charimage.getbbox())
         maskimage = Image.new('L', size)
 
-        maskimage.paste(charimage, (xpos, 4, xpos + charimage.size[0], 4 + charimage.size[1]))
+        maskimage.paste(charimage, (xpos, from_top, xpos + charimage.size[0], from_top + charimage.size[1]))
         size = maskimage.size
         image = Image.composite(fgimage, image, maskimage)
         xpos = xpos + 2 + charimage.size[0]