code: def get_lockdown_form(form_path):
      
      if not form_path:
          raise ImproperlyConfigured('No LOCKDOWN_FORM specified.')
      form_path_list = form_path.split(".")
      new_module = ".".join(form_path_list[:-1])
      attr = form_path_list[-1]
      try:
          mod = import_module(new_module)
      except (ImportError, ValueError):
          raise ImproperlyConfigured('Module configured in LOCKDOWN_FORM (%s) to'
                                     ' contain the form class couldn\'t be '
                                     'found.' % new_module)
      try:
          form = getattr(mod, attr)
      except AttributeError:
          raise ImproperlyConfigured('The module configured in LOCKDOWN_FORM '
                                     ' (%s) doesn\'t define a "%s" form.'
                                     % (new_module, attr))
      return form
docs: Return a form class for a given string pointing to a lockdown form.