old_contents: """
  Transactional version control for Django models.
  
  Developed by Dave Hall.
  
  <http://www.etianen.com/>
  """
  
  import django, warnings
  
  from reversion.revisions import default_revision_manager, revision_context_manager, VersionAdapter
  from reversion.admin import VersionAdmin
  
  
  VERSION = (1, 5)
  
  SUPPORTED_DJANGO_VERSIONS = (
      (1, 3, 1),
      (1, 3, 0),
  )
  
  def check_django_version():
      """Checks the version of django being used, and issues a warning if incorrect."""
      if django.VERSION[:3] not in SUPPORTED_DJANGO_VERSIONS:
          format_version = lambda v: u".".join(unicode(n) for n in v)
          warnings.warn(
              (
                  u"django-reversion %(reversion_version)s is intended for use with django %(supported_django_version)s. "
                  u"You are running django %(django_version)s, so some features, such as admin integration, may not work. "
                  u"Please see https://github.com/etianen/django-reversion/wiki/Compatible-Django-Versions"
              ) % {
                  "reversion_version": format_version(VERSION),
                  "supported_django_version": format_version(SUPPORTED_DJANGO_VERSION),
                  "django_version": format_version(django.VERSION[:3]),
              }
          )
          
  check_django_version()
  
  
  # Legacy revision reference.
  revision = default_revision_manager  # TODO: Deprecate eventually.
  
  
  # Easy registration methods.
  register = default_revision_manager.register
  is_registered = default_revision_manager.is_registered
  unregister = default_revision_manager.unregister
  get_adapter = default_revision_manager.get_adapter
  get_registered_models = default_revision_manager.get_registered_models
  
  
  # Context management.
  create_revision = revision_context_manager.create_revision
  
      
  # Revision meta data.
  get_user = revision_context_manager.get_user
  set_user = revision_context_manager.set_user
  get_comment = revision_context_manager.get_comment
  set_comment = revision_context_manager.set_comment
  add_meta = revision_context_manager.add_meta
  get_ignore_duplicates = revision_context_manager.get_ignore_duplicates
  set_ignore_duplicates = revision_context_manager.set_ignore_duplicates
  
  
  # Low level API.
  get_for_object_reference = default_revision_manager.get_for_object_reference
  get_for_object = default_revision_manager.get_for_object
  get_unique_for_object = default_revision_manager.get_unique_for_object
  get_for_date = default_revision_manager.get_for_date
  get_deleted = default_revision_manager.get_deleted
new_contents: """
  Transactional version control for Django models.
  
  Developed by Dave Hall.
  
  <http://www.etianen.com/>
  """
  
  import django, warnings
  
  from reversion.revisions import default_revision_manager, revision_context_manager, VersionAdapter
  from reversion.admin import VersionAdmin
  
  
  VERSION = (1, 5)
  
  SUPPORTED_DJANGO_VERSIONS = (
      (1, 3, 1),
      (1, 3, 0),
  )
  
  def check_django_version():
      """Checks the version of django being used, and issues a warning if incorrect."""
      if django.VERSION[:3] not in SUPPORTED_DJANGO_VERSIONS:
          format_version = lambda v: u".".join(unicode(n) for n in v)
          warnings.warn(
              (
                  u"django-reversion %(reversion_version)s is intended for use with django %(supported_django_version)s. "
                  u"You are running django %(django_version)s, so some features, such as admin integration, may not work. "
                  u"Please see https://github.com/etianen/django-reversion/wiki/Compatible-Django-Versions"
              ) % {
                  "reversion_version": format_version(VERSION),
                  "supported_django_version": ' or '.join(format_version(v) for v in SUPPORTED_DJANGO_VERSIONS),
                  "django_version": format_version(django.VERSION[:3]),
              }
          )
          
  check_django_version()
  
  
  # Legacy revision reference.
  revision = default_revision_manager  # TODO: Deprecate eventually.
  
  
  # Easy registration methods.
  register = default_revision_manager.register
  is_registered = default_revision_manager.is_registered
  unregister = default_revision_manager.unregister
  get_adapter = default_revision_manager.get_adapter
  get_registered_models = default_revision_manager.get_registered_models
  
  
  # Context management.
  create_revision = revision_context_manager.create_revision
  
      
  # Revision meta data.
  get_user = revision_context_manager.get_user
  set_user = revision_context_manager.set_user
  get_comment = revision_context_manager.get_comment
  set_comment = revision_context_manager.set_comment
  add_meta = revision_context_manager.add_meta
  get_ignore_duplicates = revision_context_manager.get_ignore_duplicates
  set_ignore_duplicates = revision_context_manager.set_ignore_duplicates
  
  
  # Low level API.
  get_for_object_reference = default_revision_manager.get_for_object_reference
  get_for_object = default_revision_manager.get_for_object
  get_unique_for_object = default_revision_manager.get_unique_for_object
  get_for_date = default_revision_manager.get_for_date
  get_deleted = default_revision_manager.get_deleted
subject: Fix django version warning with multiple versions