Upbit private API methods don't work.

• OS: Ubuntu 16.04.6
• Programming Language version: Python 3.7.3
• CCXT version: 1.28.721 ~ current version
• Exchange: Upbit
• Method: Private API’s

Hello, Private API methods for Upbit haven’t been working since 1.28.721. I currently can’t help but use 1.28.720(which works fine). It’d be great if you would fix it.

The error message is as follows.

In [6]: upbit.fetchBalance()
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-6-1671966e7b10> in <module>
----> 1 upbit.fetchBalance()

~/py3/lib/python3.7/site-packages/ccxt/upbit.py in fetch_balance(self, params)
    403     def fetch_balance(self, params={}):
    404         self.load_markets()
--> 405         response = self.privateGetAccounts(params)
    406         #
    407         #     [{         currency: "BTC",

~/py3/lib/python3.7/site-packages/ccxt/base/exchange.py in inner(_self, params)
    419                             if params is not None:
    420                                 inner_kwargs['params'] = params
--> 421                             return entry(_self, **inner_kwargs)
    422                         return inner
    423                     to_bind = partialer()

~/py3/lib/python3.7/site-packages/ccxt/base/exchange.py in request(self, path, api, method, params, headers, body)
    448     def request(self, path, api='public', method='GET', params={}, headers=None, body=None):
    449         """Exchange.request is the entry point for all generated methods"""
--> 450         return self.fetch2(path, api, method, params, headers, body)
    451
    452     @staticmethod

~/py3/lib/python3.7/site-packages/ccxt/base/exchange.py in fetch2(self, path, api, method, params, headers, body)
    443             self.throttle()
    444         self.lastRestRequestTimestamp = self.milliseconds()
--> 445         request = self.sign(path, api, method, params, headers, body)
    446         return self.fetch(request['url'], request['method'], request['headers'], request['body'])
    447
~/py3/lib/python3.7/site-packages/ccxt/upbit.py in sign(self, path, api, method, params, headers, body)
   1408             if query:
   1409                 request['query'] = self.urlencode(query)
-> 1410             jwt = self.jwt(request, self.secret)
   1411             headers = {
   1412                 'Authorization': 'Bearer ' + jwt,

~/py3/lib/python3.7/site-packages/ccxt/base/exchange.py in jwt(request, secret, alg)
    982         else:
    983             algorithm = algos[alg]
--> 984             signature = Exchange.hmac(token, secret, algorithm, 'binary')
    985         return token + '.' + Exchange.base64urlencode(signature)
    986

~/py3/lib/python3.7/site-packages/ccxt/base/exchange.py in hmac(request, secret, algorithm, digest)
    942     @staticmethod
    943     def hmac(request, secret, algorithm=hashlib.sha256, digest='hex'):
--> 944         h = hmac.new(secret, request, algorithm)
    945         if digest == 'hex':
    946             return h.hexdigest()

~/py3/lib/python3.7/hmac.py in new(key, msg, digestmod)
    151     method.
    152     """
--> 153     return HMAC(key, msg, digestmod)
    154
    155

~/py3/lib/python3.7/hmac.py in __init__(self, key, msg, digestmod)
     47
     48         if not isinstance(key, (bytes, bytearray)):
---> 49             raise TypeError("key: expected bytes or bytearray, but got %r" % type(key).__name__)
     50
     51         if digestmod is None:

TypeError: key: expected bytes or bytearray, but got 'str'

[jjh2811]

@kroitor Yay, it fixed. Thank you for your quick response and help.

[kroitor]

@jjh2811 ok, i’ve added one more fix, can you please test it and report after upgrading to version 1.18.781 (need to wait 10-15 minutes again)? I’ve reproduced this case on my side and fixed it, so it works with my Python 3.7.2. We will be happy if you report back whether it resolved the issue for you or not.