binascii.Error: Invalid base64-encoded string: number of data characters (25) cannot be 1 more than a multiple of 4

Python Django 中set_cookie get_cookie 出現這種錯誤

b'5Lit5paHdXRmLTjljrvmjoli'  打印看多了個b ,bytes  

解決:

　　data1=base64.b64encode('中文utf-8去掉b'.encode()).decode()

　現在打印看,去掉了b了...
  5Lit5paHdXRmLTjljrvmjoli

user_id=request.COOKIES.get('user_id')
user_id=base64.b64decode(user_id)