TypeError: must be str, not bytes

[Zhsv]

Consider that base64.b64encode(hmac.new(base64.b64decode( API_SECRET ), signature, hashlib.sha256).digest()) will return bytes again. So you have to convert it to string. As before

Thank you very much!
Now you will understand and change code.

---

Consider that base64.b64encode(hmac.new(base64.b64decode( API_SECRET ), signature, hashlib.sha256).digest()) will return bytes again. So you have to convert it to string. As before

Thank you very much!
Now you will understand and change code.

So changed. The error persists

 elif method in private_set:
         url = "https://www.cryptopia.co.nz/Api/" + method
         nonce = str( int( time.time() ) )
         post_data = json.dumps( req );
         m = hashlib.md5()
         m.update(post_data.encode('utf-8'))
         requestContentBase64String = base64.b64encode(m.digest()).decode('utf-8')
         signature = API_KEY + "POST" + urllib.parse.quote_plus( url ).lower() + nonce + requestContentBase64String
         hmacsignature = base64.b64encode(hmac.new(base64.b64decode( API_SECRET ), signature, hashlib.sha256).digest()).decode('utf-8')
         header_value = "amx " + API_KEY + ":" + hmacsignature + ":" + nonce
         headers = { 'Authorization': header_value, 'Content-Type':'application/json; charset=utf-8' }
         r = requests.post( url, data = post_data, headers = headers )
 response = r.text

Error:
def api_query( method = GetBalance, req = {} ):
Traceback (most recent call last):
  File "C:/Cloud/Cripto/3.py", line 53, in <module>
    print (api_query("GetBalance"))
  File "C:/Cloud/Cripto/3.py", line 35, in api_query
    hmacsignature = base64.b64encode(hmac.new(base64.b64decode( API_SECRET ), signature, hashlib.sha256).digest()).decode('utf-8')
  File "C:\Users\Сергей\AppData\Local\Programs\Python\Python36-32\lib\base64.py", line 87, in b64decode
    return binascii.a2b_base64(s)
binascii.Error: Incorrect padding
>>>