为什么 Yfinance 库几个月无法使用？

Question

我正在使用Python中的雅虎金融库和请求库。当我尝试调用几个月或几年的历史数据（例如“1mo”或“1y”）时，我收到错误 422。

我尝试调用另一只股票和不同的月份周期（例如 3 个月），但结果相同。这是我使用的代码，它给了我错误代码 422：

import requests

def fetch_yahoo_finance_data(symbol, interval='1m', range_='1mo'):
    url 
    =f"https://query1.finance.yahoo.com/v8/finance/chart/{symbol}? 
    interval={interval}&range={range_}"
    response = requests.get(url, headers=headers)

    if response.status_code == 200:
        data = response.json()
        return data
    else:
        print(f"Failed to fetch data. Status 
        Code{response.status_code}")
        return None

data = fetch_yahoo_finance_data('BMW.DE', "1m", "1mo") 

Answer 1

我使用雅虎财务模块

yfinance

来实现相同的目的（而不是使用问题中尝试的 URL 方法，该方法具有未定义的

headers

变量）。

这是我使用的代码：

import yfinance as yf
from datetime import datetime, timedelta

# Define the ticker symbol for BMW. Use "BMW.DE" for the Frankfurt Stock Exchange.
ticker_symbol = "BMW.DE"

# Create a ticker object
bmw_ticker = yf.Ticker(ticker_symbol)

# Calculate the date 6 months ago from today
six_months_ago = datetime.now() - timedelta(days=6*30)  # Approximation of 6 months

# Fetch the historical data for BMW for the last 6 months
bmw_data = bmw_ticker.history(
    start=six_months_ago.strftime('%Y-%m-%d'), 
    end=datetime.now().strftime('%Y-%m-%d'))

# Display the closing prices
print(bmw_data['Close'])

结果如下所示：

Date
2023-07-18 00:00:00+02:00    107.099998
2023-07-19 00:00:00+02:00    107.199997
2023-07-20 00:00:00+02:00    107.680000
2023-07-21 00:00:00+02:00    107.580002
2023-07-24 00:00:00+02:00    108.599998
                                ...    
2024-01-08 00:00:00+01:00    101.199997
2024-01-09 00:00:00+01:00    100.820000
2024-01-10 00:00:00+01:00     99.900002
2024-01-11 00:00:00+01:00     98.459999
2024-01-12 00:00:00+01:00     96.849998
Name: Close, Length: 125, dtype: float64