Only works inside an IPython Notebook

Raise code

""" 
    >>> clip.write_gif("test.gif")
    >>> ipython_display('test.gif')

    >>> clip.save_frame("first_frame.jpeg")
    >>> ipython_display("first_frame.jpeg")
    """
    if not ipython_available:
        raise ImportError("Only works inside an IPython Notebook")

    if rd_kwargs is None:
        rd_kwargs = {}

    if fps is not None:
        rd_kwargs["fps"] = fps