code: def importpath(path, error_text=None):
      
      result = None
      attrs = []
      parts = path.split('.')
      exception = None
      while parts:
          try:
              result = __import__('.'.join(parts), {}, {}, [''])
          except ImportError as e:
              if exception is None:
                  exception = e
              attrs = parts[-1:] + attrs
              parts = parts[:-1]
          else:
              break
      for attr in attrs:
          try:
              result = getattr(result, attr)
          except (AttributeError, ValueError) as e:
              if error_text is not None:
                  raise ImproperlyConfigured('Error: %s can import "%s"' % (
                      error_text, path))
              else:
                  raise exception
      return result
docs: Import value by specified ``path``.
      Value can represent module, class, object, attribute or method.
      If ``error_text`` is not None and import will
      raise ImproperlyConfigured with user friendly text.