arbitrage_tools.py 文件源码

def get_forex_buy_quote(currency_code: str = 'EUR', source: str = 'FNB', order_type: str = 'buy'):
    """Get latest forex from FNB website

    """
    if source == 'FNB':
        tables = pd.read_html(
            'https://www.fnb.co.za/Controller?nav=rates.forex.list.ForexRatesList',
            index_col=1, header=0, match=currency_code)

        df = tables[0]

        types = {
            'buy': 'Bank Selling Rate',
            'sell': 'Bank Buying Rate',
        }

        exhange_rate = df.loc[currency_code, types[order_type]]

        return Decimal("%.4f" % float(exhange_rate))