tools.py 文件源码

def check_url(url=None):
    """Check URL integrity.

    Parameters
    ----------
        url : string
            URL to be checked.

    """
    if url is None:
        if 'http' not in get_config_file()['offline_url']:
            raise Exception("No default offline URL set. "
                            "Please run "
                            "quantmod.set_config_file(offline_url=YOUR_URL) "
                            "to set the default offline URL.")
        else:
            url = get_config_file()['offline_url']

    if url is not None:
        if not isinstance(url, six.string_types):
            raise TypeError("Invalid url '{0}'. "
                            "It should be string."
                            .format(url))

    pyo.download_plotlyjs(url)