OpenSSL: TypeError: buf must be a byte string?

Using the script

authd_client = fitbit.Fitbit('consumer_key', 'consumer_secret', oauth2=True, access_token='access_token', refresh_token='refresh_token')
authd_client.sleep()

I'm getting the following error from the OpenSSL library in my global config. Thinking it's a problem with libaries, I created a virtualenv and installed via pip install -r requirements/base.txt. I'm still getting the same problem.

Has anyone else experienced this issue?

(venv)fitbit ➤ python fit.py                                                                                                                   
Traceback (most recent call last):
  File "fit.py", line 19, in <module>
    client.sleep()
  File "/usr/local/lib/python2.7/dist-packages/fitbit/utils.py", line 38, in _curried
    return _curried_func(*(args+moreargs), **dict(kwargs, **morekwargs))
  File "/usr/local/lib/python2.7/dist-packages/fitbit/api.py", line 454, in _COLLECTION_RESOURCE
    return self.make_request(url, data)
  File "/usr/local/lib/python2.7/dist-packages/fitbit/api.py", line 362, in make_request
    response = self.client.make_request(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/fitbit/api.py", line 193, in make_request
    response = self._request(method, url, data=data, auth=auth, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/fitbit/api.py", line 180, in _request
    return self.session.request(method, url, **kwargs)
  File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 457, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 569, in send
    r = adapter.send(request, **kwargs)
  File "/usr/lib/python2.7/dist-packages/requests/adapters.py", line 362, in send
    timeout=timeout
  File "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 516, in urlopen
    body=body, headers=headers)
  File "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 308, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/usr/lib/python2.7/httplib.py", line 1001, in request
    self._send_request(method, url, body, headers)
  File "/usr/lib/python2.7/httplib.py", line 1035, in _send_request
    self.endheaders(body)
  File "/usr/lib/python2.7/httplib.py", line 997, in endheaders
    self._send_output(message_body)
  File "/usr/lib/python2.7/httplib.py", line 850, in _send_output
    self.send(msg)
  File "/usr/lib/python2.7/httplib.py", line 826, in send
    self.sock.sendall(data)
  File "/usr/lib/python2.7/dist-packages/urllib3/contrib/pyopenssl.py", line 208, in sendall
    return self.connection.sendall(data)
  File "/usr/lib/python2.7/dist-packages/OpenSSL/SSL.py", line 969, in sendall
    raise TypeError("buf must be a byte string")
TypeError: buf must be a byte string

orcasgit / python-fitbit

OpenSSL: TypeError: buf must be a byte string? #79