>>> import requests
>>> s = requests.session()
>>> r = s.get('https://tw.stock.yahoo.com/rss/s/1437', verify=False)
>>> r.status_code
500
>>> header = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64; rv:46.0) Gecko/20100101 Firefox/46.0'}
>>> r = s.get('https://tw.stock.yahoo.com/rss/s/1437', headers=header, verify=False)
>>> r.status_code
200