eagle.py 文件源码

def get_stock(symbol):
    last_year_date = datetime.strftime(datetime.now() - relativedelta(years=1), "%Y-%m-%d")
    date = get_last_trading_date()
    url = requests.get('https://www.quandl.com/api/v3/datasets/WIKI/{}.json?start_date={}&end_date={}'.format(symbol, last_year_date, date))
    json_dataset = url.json()
    json_data = json_dataset['dataset']['data']
    dates = []  
    closing = []
    for day in json_data:
        dates.append(datetime.strptime(day[0], "%Y-%m-%d"))
        closing.append(day[4])
    plt.plot_date(dates, closing, '-')
    plt.title(symbol)
    plt.xlabel('Date')
    plt.ylable('Stock Price')
    plt.savefig('foo.png')