code: def _from_parts(cls, args, init=True):
          
          if args:
              args = list(args)
              if isinstance(args[0], WindowsPath2):
                  args[0] = args[0].path
              elif args[0].startswith("\\\\?\\"):
                  args[0] = args[0][4:]
              args = tuple(args)
          return super(WindowsPath2, cls)._from_parts(args, init)
docs: Strip \\?\ prefix in init phase