def connect(env_name):
juju_home = os.path.expanduser(os.environ.get("JUJU_HOME", "~/.juju"))
juju_conf = os.path.join(juju_home, "environments", "%s.jenv" % env_name)
conf = _config_from_env(juju_conf)
env = Environment(conf['uri'])
env.login(conf['secret'])
return env
