requests.exceptions.InvalidHeader: Value for header {XX: (‘XX‘,)} must be of type str or bytes, not

requests.exceptions.InvalidHeader: Value for header {xxx: ('xxx',)} must be of type str or bytes, not <class 'tuple'>

检查代码后面是不是多了个逗号(,)；传值的时候后面带了逗号就会变成元组了。