Function _display

tensorboard/notebook.py:261–310

Internal version of `display`. Args: port: As with `display`. height: As with `display`. print_message: True to print which TensorBoard instance was selected for display (if applicable), or False otherwise. display_handle: If not None, an IPython display handle i

(port=None, height=None, print_message=False, display_handle=None)

def _display(port=None, height=None, print_message=False, display_handle=None):
    """Internal version of `display`.

    Args:
      port: As with `display`.
      height: As with `display`.
      print_message: True to print which TensorBoard instance was selected
        for display (if applicable), or False otherwise.
      display_handle: If not None, an IPython display handle into which to
        render TensorBoard.
    """
    if height is None:
        height = 800

    if port is None:
        infos = manager.get_all()
        if not infos:
            raise ValueError(
                "Can't display TensorBoard: no known instances running."
            )
        else:
            info = max(manager.get_all(), key=lambda x: x.start_time)
            port = info.port
    else:
        infos = [i for i in manager.get_all() if i.port == port]
        info = max(infos, key=lambda x: x.start_time) if infos else None

    if print_message:
        if info is not None:
            message = (
                "Selecting TensorBoard with {data_source} "
                "(started {delta} ago; port {port}, pid {pid})."
            ).format(
                data_source=manager.data_source_from_info(info),
                delta=_time_delta_from_info(info),
                port=info.port,
                pid=info.pid,
            )
            print(message)
        else:
            # The user explicitly provided a port, and we don't have any
            # additional information. There's nothing useful to say.
            pass

    fn = {
        _CONTEXT_COLAB: _display_colab,
        _CONTEXT_IPYTHON: _display_ipython,
        _CONTEXT_NONE: _display_cli,
    }[_get_context()]
    return fn(port=port, height=height, display_handle=display_handle)


def _display_colab(port, height, display_handle):