open id fails incorrect padding

[mmack3540]

I've done a little more research and not found a solution. There appears to be a python bug affecting the execution of your code. There is a discussion here
https://bugs.python.org/issue33770 and there WeblateOrg/weblate#1799 but no solution. In store.py line 80, the assoc. secret string is submitted that causes python3.6/base64.py", line 556, in decodebytes binascii.a2b_base64(s) to fail. An example string repr of assoc.secret is: b'OXk5VXGt7nVxguRqkZps2EAQYrU=\n'

According to this discussion, http://psf.upfronthosting.co.za/roundup/tracker/issue32491
there may be a bug causing this. The \n is not being ignored and throwing a Incorrect padding error.

The code executes without errors using python 3.55 and django 1.10. Something in python/django must have broken due to the change.

Any help in solving this would be very much appreciated.

Using python3.6 and django 2.06. Here's my traceback:
Traceback:
File "/home/malcolm/anaconda3/envs/cel2/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
35. response = get_response(request)
File "/home/malcolm/anaconda3/envs/cel2/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
128. response = self.process_exception_by_middleware(e, request)
File "/home/malcolm/anaconda3/envs/cel2/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
126. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/malcolm/cel/qb5/django_openid_auth/views.py" in login_begin
188. openid_request = consumer.begin(openid_url)
File "/home/malcolm/anaconda3/envs/cel2/lib/python3.6/site-packages/openid/consumer/consumer.py" in begin
359. return self.beginWithoutDiscovery(service, anonymous)
File "/home/malcolm/anaconda3/envs/cel2/lib/python3.6/site-packages/openid/consumer/consumer.py" in beginWithoutDiscovery
382. auth_req = self.consumer.begin(service)
File "/home/malcolm/anaconda3/envs/cel2/lib/python3.6/site-packages/openid/consumer/consumer.py" in begin
610. assoc = self._getAssociation(service_endpoint)
File "/home/malcolm/anaconda3/envs/cel2/lib/python3.6/site-packages/openid/consumer/consumer.py" in _getAssociation
1178. assoc = self.store.getAssociation(endpoint.server_url)
File "/home/malcolm/cel/qb5/django_openid_auth/store.py" in getAssociation
80. base64.decodestring(assoc.secret.encode('utf-8')),
File "/home/malcolm/anaconda3/envs/cel2/lib/python3.6/base64.py" in decodestring
564. return decodebytes(s)
File "/home/malcolm/anaconda3/envs/cel2/lib/python3.6/base64.py" in decodebytes
556. return binascii.a2b_base64(s)

Exception Type: Error at /openid/login/
Exception Value: Incorrect padding