Flask
request.referrer # 來路
request.headers.get('User-Agent') # 請求頭
Django
request.META['HTTP_REFERER'] # 來路
request.META.get("HTTP_USER_AGENT") # 請求頭
參考
http://docs.jinkan.org/docs/flask/reqcontext.html?highlight=referrer http://www.sharejs.com/codes/python/5158