Django升级1.9.6出现的中文本地化bug

Error日志：

Error opening file for reading: Permission denied
ERROR Internal Server Error: /
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 174, in get_response
    response = self.process_exception_by_middleware(e, request)
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 172, in get_response
    response = response.render()
  File "/usr/local/lib/python2.7/dist-packages/django/template/response.py", line 160, in render
    self.content = self.rendered_content
  File "/usr/local/lib/python2.7/dist-packages/django/template/response.py", line 137, in rendered_content
    content = template.render(context, self._request)
  File "/usr/local/lib/python2.7/dist-packages/django/template/backends/django.py", line 95, in render
    return self.template.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 206, in render
    return self._render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 197, in _render
    return self.nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 992, in render
    bit = node.render_annotated(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 959, in render_annotated
    return self.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 173, in render
    return compiled_parent._render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 197, in _render
    return self.nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 992, in render
    bit = node.render_annotated(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 959, in render_annotated
    return self.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 69, in render
    result = block.nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 992, in render
    bit = node.render_annotated(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 959, in render_annotated
    return self.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/library.py", line 243, in render
    return t.render(new_context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 208, in render
    return self._render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 197, in _render
    return self.nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 992, in render
    bit = node.render_annotated(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 959, in render_annotated
    return self.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py", line 220, in render
    nodelist.append(node.render_annotated(context))
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 959, in render_annotated
    return self.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 1043, in render
    output = self.filter_expression.resolve(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 736, in resolve
    new_obj = func(obj, *arg_vals)
  File "/usr/local/lib/python2.7/dist-packages/django/template/defaultfilters.py", line 51, in _dec
    return func(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/django/template/defaultfilters.py", line 278, in truncatechars
    return Truncator(value).chars(length)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/functional.py", line 194, in wrapper
    return func(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/text.py", line 103, in chars
    for char in self.add_truncation_text('', truncate):
  File "/usr/local/lib/python2.7/dist-packages/django/utils/text.py", line 77, in add_truncation_text
    '%(truncated_text)s...')
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/__init__.py", line 93, in pgettext
    return _trans.pgettext(context, message)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 326, in pgettext
    result = ugettext(msg_with_ctxt)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 321, in ugettext
    return do_translate(message, 'ugettext')
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 298, in do_translate
    _default = _default or translation(settings.LANGUAGE_CODE)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 205, in translation
    _translations[language] = DjangoTranslation(language)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 118, in __init__
    raise IOError("No translation files found for default language %s." % settings.LANGUAGE_CODE)
IOError: No translation files found for default language zh-CN.
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/wsgi.py", line 177, in __call__
    response = self.get_response(request)
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 230, in get_response
    response = self.handle_uncaught_exception(request, resolver, sys.exc_info())
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 284, in handle_uncaught_exception
    'request': request
  File "/usr/lib/python2.7/logging/__init__.py", line 1166, in error
    self._log(ERROR, msg, args, **kwargs)
  File "/usr/lib/python2.7/logging/__init__.py", line 1258, in _log
    self.handle(record)
  File "/usr/lib/python2.7/logging/__init__.py", line 1268, in handle
    self.callHandlers(record)
  File "/usr/lib/python2.7/logging/__init__.py", line 1308, in callHandlers
    hdlr.handle(record)
  File "/usr/lib/python2.7/logging/__init__.py", line 748, in handle
    self.emit(record)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/log.py", line 115, in emit
    message = "%s

%s" % (self.format(no_exc_record), reporter.get_traceback_text())
  File "/usr/local/lib/python2.7/dist-packages/django/views/debug.py", line 323, in get_traceback_text
    return t.render(c)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 206, in render
    return self._render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 197, in _render
    return self.nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 992, in render
    bit = node.render_annotated(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 959, in render_annotated
    return self.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 1043, in render
    output = self.filter_expression.resolve(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 736, in resolve
    new_obj = func(obj, *arg_vals)
  File "/usr/local/lib/python2.7/dist-packages/django/template/defaultfilters.py", line 778, in date
    return formats.date_format(value, arg)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/formats.py", line 151, in date_format
    return dateformat.format(value, get_format(format or 'DATE_FORMAT', use_l10n=use_l10n))
  File "/usr/local/lib/python2.7/dist-packages/django/utils/dateformat.py", line 367, in format
    return df.format(format_string)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/dateformat.py", line 37, in format
    pieces.append(force_text(getattr(self, piece)()))
  File "/usr/local/lib/python2.7/dist-packages/django/utils/dateformat.py", line 292, in r
    return self.format('D, j M Y H:i:s O')
  File "/usr/local/lib/python2.7/dist-packages/django/utils/dateformat.py", line 37, in format
    pieces.append(force_text(getattr(self, piece)()))
  File "/usr/local/lib/python2.7/dist-packages/django/utils/encoding.py", line 78, in force_text
    s = six.text_type(s)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/functional.py", line 114, in __text_cast
    return func(*self.__args, **self.__kw)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/__init__.py", line 85, in ugettext
    return _trans.ugettext(message)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 321, in ugettext
    return do_translate(message, 'ugettext')
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 298, in do_translate
    _default = _default or translation(settings.LANGUAGE_CODE)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 205, in translation
    _translations[language] = DjangoTranslation(language)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 118, in __init__
    raise IOError("No translation files found for default language %s." % settings.LANGUAGE_CODE)
IOError: No translation files found for default language zh-CN.
[pid: 3318|app: 0|req: 1/1] 219.237.242.144 () {44 vars in 5238 bytes} [Fri May  6 10:19:53 2016] GET / => generated 0 bytes in 243 msecs (HTTP/1.1 500) 0 headers in 0 bytes (0 switches on core 0)
Error opening file for reading: Permission denied
[pid: 3321|app: 0|req: 1/2] 68.180.229.29 () {32 vars in 469 bytes} [Fri May  6 10:21:04 2016] GET /ge/qqt-a653480/ => generated 19272 bytes in 272 msecs (HTTP/1.1 200) 3 headers in 195 bytes (1 switches on core 0)
Error opening file for reading: Permission denied
ERROR Internal Server Error: /
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 174, in get_response
    response = self.process_exception_by_middleware(e, request)
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 172, in get_response
    response = response.render()
  File "/usr/local/lib/python2.7/dist-packages/django/template/response.py", line 160, in render
    self.content = self.rendered_content
  File "/usr/local/lib/python2.7/dist-packages/django/template/response.py", line 137, in rendered_content
    content = template.render(context, self._request)
  File "/usr/local/lib/python2.7/dist-packages/django/template/backends/django.py", line 95, in render
    return self.template.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 206, in render
    return self._render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 197, in _render
    return self.nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 992, in render
    bit = node.render_annotated(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 959, in render_annotated
    return self.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 173, in render
    return compiled_parent._render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 197, in _render
    return self.nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 992, in render
    bit = node.render_annotated(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 959, in render_annotated
    return self.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/loader_tags.py", line 69, in render
    result = block.nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 992, in render
    bit = node.render_annotated(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 959, in render_annotated
    return self.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/library.py", line 243, in render
    return t.render(new_context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 208, in render
    return self._render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 197, in _render
    return self.nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 992, in render
    bit = node.render_annotated(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 959, in render_annotated
    return self.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py", line 220, in render
    nodelist.append(node.render_annotated(context))
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 959, in render_annotated
    return self.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 1043, in render
    output = self.filter_expression.resolve(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 736, in resolve
    new_obj = func(obj, *arg_vals)
  File "/usr/local/lib/python2.7/dist-packages/django/template/defaultfilters.py", line 51, in _dec
    return func(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/django/template/defaultfilters.py", line 278, in truncatechars
    return Truncator(value).chars(length)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/functional.py", line 194, in wrapper
    return func(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/text.py", line 103, in chars
    for char in self.add_truncation_text('', truncate):
  File "/usr/local/lib/python2.7/dist-packages/django/utils/text.py", line 77, in add_truncation_text
    '%(truncated_text)s...')
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/__init__.py", line 93, in pgettext
    return _trans.pgettext(context, message)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 326, in pgettext
    result = ugettext(msg_with_ctxt)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 321, in ugettext
    return do_translate(message, 'ugettext')
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 298, in do_translate
    _default = _default or translation(settings.LANGUAGE_CODE)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 205, in translation
    _translations[language] = DjangoTranslation(language)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 118, in __init__
    raise IOError("No translation files found for default language %s." % settings.LANGUAGE_CODE)
IOError: No translation files found for default language zh-CN.
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/wsgi.py", line 177, in __call__
    response = self.get_response(request)
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 230, in get_response
    response = self.handle_uncaught_exception(request, resolver, sys.exc_info())
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 284, in handle_uncaught_exception
    'request': request
  File "/usr/lib/python2.7/logging/__init__.py", line 1166, in error
    self._log(ERROR, msg, args, **kwargs)
  File "/usr/lib/python2.7/logging/__init__.py", line 1258, in _log
    self.handle(record)
  File "/usr/lib/python2.7/logging/__init__.py", line 1268, in handle
    self.callHandlers(record)
  File "/usr/lib/python2.7/logging/__init__.py", line 1308, in callHandlers
    hdlr.handle(record)
  File "/usr/lib/python2.7/logging/__init__.py", line 748, in handle
    self.emit(record)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/log.py", line 115, in emit
    message = "%s

%s" % (self.format(no_exc_record), reporter.get_traceback_text())
  File "/usr/local/lib/python2.7/dist-packages/django/views/debug.py", line 323, in get_traceback_text
    return t.render(c)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 206, in render
    return self._render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 197, in _render
    return self.nodelist.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 992, in render
    bit = node.render_annotated(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 959, in render_annotated
    return self.render(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 1043, in render
    output = self.filter_expression.resolve(context)
  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", line 736, in resolve
    new_obj = func(obj, *arg_vals)
  File "/usr/local/lib/python2.7/dist-packages/django/template/defaultfilters.py", line 778, in date
    return formats.date_format(value, arg)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/formats.py", line 151, in date_format
    return dateformat.format(value, get_format(format or 'DATE_FORMAT', use_l10n=use_l10n))
  File "/usr/local/lib/python2.7/dist-packages/django/utils/dateformat.py", line 367, in format
    return df.format(format_string)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/dateformat.py", line 37, in format
    pieces.append(force_text(getattr(self, piece)()))
  File "/usr/local/lib/python2.7/dist-packages/django/utils/dateformat.py", line 292, in r
    return self.format('D, j M Y H:i:s O')
  File "/usr/local/lib/python2.7/dist-packages/django/utils/dateformat.py", line 37, in format
    pieces.append(force_text(getattr(self, piece)()))
  File "/usr/local/lib/python2.7/dist-packages/django/utils/encoding.py", line 78, in force_text
    s = six.text_type(s)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/functional.py", line 114, in __text_cast
    return func(*self.__args, **self.__kw)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/__init__.py", line 85, in ugettext
    return _trans.ugettext(message)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 321, in ugettext
    return do_translate(message, 'ugettext')
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 298, in do_translate
    _default = _default or translation(settings.LANGUAGE_CODE)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 205, in translation
    _translations[language] = DjangoTranslation(language)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 118, in __init__
    raise IOError("No translation files found for default language %s." % settings.LANGUAGE_CODE)
IOError: No translation files found for default language zh-CN.

经确认是新版本的django包版本中只有zh_Hans目录，没有zh_CN,把zh_Hans目录复制一个zh_CN就Ok了

一楼评论的方法也不错，在settings里面直接改成zh-Hans，这样就不用升级完Django，还去改目录了。