  
          if not self.SECRET_KEY:
              raise ImproperlyConfigured("The SECRET_KEY setting must not be empty.")
  
          if self.is_overridden('DEFAULT_CONTENT_TYPE'):
              warnings.warn(DEFAULT_CONTENT_TYPE_DEPRECATED_MSG, RemovedInDjango30Warning)
          if self.is_overridden('FILE_CHARSET'):
              warnings.warn(FILE_CHARSET_DEPRECATED_MSG, RemovedInDjango31Warning)
  
          if hasattr(time, 'tzset') and self.TIME_ZONE:
              # When we can, attempt to validate the timezone. If we can't find
 
</s> remove         if name == 'DEFAULT_CONTENT_TYPE':
            warnings.warn(DEFAULT_CONTENT_TYPE_DEPRECATED_MSG, RemovedInDjango30Warning)
        elif name == 'FILE_CHARSET':
 </s> add         if name == 'FILE_CHARSET': </s> remove             content_type = '%s; charset=%s' % (settings.DEFAULT_CONTENT_TYPE,
                                               self.charset)
 </s> add             content_type = 'text/html; charset=%s' % self.charset </s> remove     specified, it is formed by the :setting:`DEFAULT_CONTENT_TYPE` and
 </s> add     specified, it is formed by ``'text/html'`` and the </s> remove     @property
    def DEFAULT_CONTENT_TYPE(self):
        stack = traceback.extract_stack()
        # Show a warning if the setting is used outside of Django.
        # Stack index: -1 this line, -2 the caller.
        filename, _line_number, _function_name, _text = stack[-2]
        if not filename.startswith(os.path.dirname(django.__file__)):
            warnings.warn(
                DEFAULT_CONTENT_TYPE_DEPRECATED_MSG,
                RemovedInDjango30Warning,
                stacklevel=2,
            )
        return self.__getattr__('DEFAULT_CONTENT_TYPE')

 </s> add  </s> remove # Default content type and charset to use for all HttpResponse objects, if a
# MIME type isn't manually specified. These are used to construct the
# Content-Type header.
DEFAULT_CONTENT_TYPE = 'text/html'
 </s> add # Default charset to use for all HttpResponse objects, if a MIME type isn't
# manually specified. It's used to construct the Content-Type header.
  
          if not self.SECRET_KEY:
              raise ImproperlyConfigured("The SECRET_KEY setting must not be empty.")
  


          if self.is_overridden('FILE_CHARSET'):
              warnings.warn(FILE_CHARSET_DEPRECATED_MSG, RemovedInDjango31Warning)
  
          if hasattr(time, 'tzset') and self.TIME_ZONE:
              # When we can, attempt to validate the timezone. If we can't find
keep keep keep keep replace replace keep keep keep keep keep
 Refs #27829 -- Removed settings.DEFAULT_CONTENT_TYPE per deprecation timeline. 
django/conf/__init__.py