make Babel as optional dependency as it doesn't support python 3.2

HACKING.txt

@@ -122,7 +122,7 @@ Transifex project should be used for translations: https://www.transifex.com/pro
 
 Before you can do anything related to translations, there is small setup:
 
-- Make sure "transifex-client" Python package is installed
+- Run ``bin/python setup.py i18n``
 
 To update transifex with new translations:
 

setup.cfg

@@ -11,6 +11,7 @@ cover-erase=1
 [aliases]
 dev = develop easy_install substanced[testing]
 docs = develop easy_install substanced[docs]
+i18n = develop easy_install substanced[i18n]
 
 [compile_catalog]
 directory = substanced/locale

setup.py

@@ -41,11 +41,11 @@
     'zope.deprecation',
     'statsd',
     'pytz',
-    'Babel',
     ]
 
 docs_extras = ['Sphinx', 'repoze.sphinx.autointerface']
 testing_extras = ['nose', 'coverage', 'mock', 'virtualenv', 'nose-selecttests']
+i18n_extras = ['Babel', 'transifex-client']
 
 setup(name='substanced',
       version='0.0',
@@ -95,5 +95,6 @@
       extras_require = {
           'testing':testing_extras,
           'docs':docs_extras,
+          'i18n':i18n_extras,
           },
       )

substanced/principal/__init__.py

@@ -2,7 +2,6 @@
 import os
 import string
 
-import babel
 from persistent import Persistent
 from cryptacular.bcrypt import BCRYPTPasswordManager
 
@@ -314,8 +313,8 @@ def get_locales():
 
 @colander.deferred
 def locale_widget(node, kw):
-    locale_names = [babel.Locale.parse(locale).english_name for locale in _LOCALES]
-    return deform.widget.Select2Widget(values=zip(_LOCALES, locale_names))
+    # TODO: locale_names = [babel.Locale.parse(locale).english_name for locale in _LOCALES]
+    return deform.widget.Select2Widget(values=zip(_LOCALES, _LOCALES))
 
 @colander.deferred
 def locale_missing(node, kw): #pragma NO COVER