utils.py 文件源码

def barsize_to_IB(barsize: str) -> str:
    """
    Convert a user-input ambiguous bar size string to IB-style barSizeSetting
    and check validility.

    :param barsize: A user-input ambiguous time duration string,
                    like '1 min', '5days',etc.
    :returns: IB-style barSizeSetting

    """
    timedur = timedur_standardize(barsize)
    IB_barsize_map = {
        '1s': '1 secs',
        '5s': '5 secs',
        '10s': '10 secs',
        '15s': '15 secs',
        '30s': '30 secs',
        '1m': '1 min',
        '2m': '2 mins',
        '3m': '3 mins',
        '5m': '5 mins',
        '10m': '10 mins',
        '15m': '15 mins',
        '20m': '20 mins',
        '30m': '30 mins',
        '1h': '1 hour',
        '2h': '2 hours',
        '3h': '3 hours',
        '4h': '4 hours',
        '8h': '8 hours',
        '1d': '1 day',
        '1W': '1W',
        '1M': '1M'
    }
    try:
        barSizeSetting = IB_barsize_map[timedur]
    except KeyError:
        raise KeyError("Invalid input barsize string: {}!".format(barsize))
    return barSizeSetting