>>> from etcd3 import Client >>> client = Client(host='my_etcd_host',protocol='https', verify='/etc/ssl/certs/ca-certificates.crt', username='myuser', password='mypassword') >>> client.version() EtcdVersion(etcdserver='3.3.10', etcdcluster='3.3.0') >>> client.put('foo', 'bar') Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/home/jsfrerot/code/python_envs/etcd_client/lib/python3.6/site-packages/etcd3/apis/kv.py", line 106, in put return self.call_rpc(method, data=data) File "/home/jsfrerot/code/python_envs/etcd_client/lib/python3.6/site-packages/etcd3/client.py", line 199, in call_rpc self._raise_for_status(resp) File "/home/jsfrerot/code/python_envs/etcd_client/lib/python3.6/site-packages/etcd3/client.py", line 148, in _raise_for_status raise get_client_error(error, code, status, resp) etcd3.errors.go_etcd_rpctypes_error.ErrUserEmpty: <ErrUserEmpty error:'etcdserver: user name is empty', code:3>