hashlib.md5() TypeError: Unicode-objects must be encoded before hashing

Question

I am new to coding and have ran into a problem trying to encode a string.

>>> import hashlib
>>> a = hashlib.md5()
>>> a.update(\'         


        

Answer 1

For Python3 the following worked.

secretKey = b"secret key that you get from Coginito -> User Pool -> General Settings -> App Clients-->Click on Show more details -> App client secret"
        clientId = "Coginito -> User Pool -> General Settings -> App Clients-->App client id"
        digest = hmac.new(secretKey,
                  msg=(user_name + clientId).encode('utf-8'),
                  digestmod=hashlib.sha256
                 ).digest()
        signature = base64.b64encode(digest).decode()

The username user_name in the above is same as the user that you want to register in the cognito.