I also hit this today:

2016-11-24 04:21:45 [DEBUG] deployer.import: Getting charms...
2016-11-24 04:21:45 [DEBUG] deployer.deploy: Resolving configuration
2016-11-24 04:21:45 [DEBUG] deployer.env: Connecting to environment...
Traceback (most recent call last):
  File "/usr/bin/juju-deployer", line 9, in <module>
    load_entry_point('juju-deployer==0.6.4', 'console_scripts', 'juju-deployer')()
  File "/usr/lib/python2.7/dist-packages/deployer/cli.py", line 135, in main
    run()
  File "/usr/lib/python2.7/dist-packages/deployer/cli.py", line 234, in run
    importer.Importer(env, deployment, options).run()
  File "/usr/lib/python2.7/dist-packages/deployer/action/importer.py", line 298, in run
    self.env.connect()
  File "/usr/lib/python2.7/dist-packages/deployer/env/go.py", line 65, in connect
    self.client = EnvironmentClient.connect(self.name)
  File "/usr/lib/python2.7/dist-packages/jujuclient.py", line 534, in connect
    return Connector().run(cls, env_name)
  File "/usr/lib/python2.7/dist-packages/jujuclient.py", line 142, in run
    cert_path, data.get('environ-uuid'))
  File "/usr/lib/python2.7/dist-packages/jujuclient.py", line 150, in connect_env
    env = cls(endpoint, name=name, ca_cert=cert_path, env_uuid=env_uuid)
  File "/usr/lib/python2.7/dist-packages/jujuclient.py", line 522, in __init__
    self.conn = Connector.connect_socket(endpoint, self._ca_cert)
  File "/usr/lib/python2.7/dist-packages/jujuclient.py", line 162, in connect_socket
    endpoint, origin=endpoint, sslopt=sslopt)
  File "/usr/lib/python2.7/dist-packages/websocket/_core.py", line 219, in create_connection
    websock.connect(url, **options)
  File "/usr/lib/python2.7/dist-packages/websocket/_core.py", line 463, in connect
    self.sock = ssl.wrap_socket(self.sock, **sslopt)
  File "/usr/lib/python2.7/ssl.py", line 487, in wrap_socket
    ciphers=ciphers)
  File "/usr/lib/python2.7/ssl.py", line 243, in __init__
    self.do_handshake()
  File "/usr/lib/python2.7/ssl.py", line 405, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLError: [Errno 1] _ssl.c:510: error:1409442E:SSL routines:SSL3_READ_BYTES:tlsv1 alert protocol version
2016-11-24 04:21:45 [ERROR] Juju Status: environment: lmicintegrationxenial
machines:
  "0":
    agent-state: started
    agent-version: 1.25.8
    dns-name: 10.5.0.40
    instance-id: d80bea08-1f24-4cce-925e-1cf68e1afd39
    instance-state: ACTIVE
    series: xenial
    hardware: arch=amd64 cpu-cores=2 mem=4096M root-disk=40960M availability-zone=nova
    state-server-member-status: has-vote
services: {}

$ dpkg -l |grep juju
ii  juju                                 1.25.6-0ubuntu1.14.04.1             all          next generation service orchestration system
ii  juju-core                            1.25.6-0ubuntu1.14.04.1             amd64        Juju is devops distilled - client
ii  juju-deployer                        0.6.4-0ubuntu1~trusty1              all          Deploy complex stacks of services using Juju
ii  juju-local                           1.25.6-0ubuntu1.14.04.1             all          dependency package for the Juju local provider
ii  juju-mongodb                         2.4.9-0ubuntu3                      amd64        MongoDB object/document-oriented database for Juju
ii  python-jujuclient                    0.50.3-1~ubuntu14.04.1~ppa1         amd64        Python API client for juju-core