ansible - bug with lookup dict

dict.py

# edit lib/ansible/plugins/lookup/dict.py to look like

class LookupModule(LookupBase):

    def run(self, terms, variables=None, **kwargs):

        # Expect any type of Mapping, notably hostvars
        if not isinstance(terms, collections.Mapping):
            raise AnsibleError("with_dict expects a dict, got type {0}, terms contains {1}".format(type(terms), terms))

        return self._flatten_hash_to_list(terms)

output

TASK [debug] **************************************************************************************************************************
task path: /private/tmp/ansible/play.yml:9
fatal: [localhost]: FAILED! => {
    "msg": "An unhandled exception occurred while running the lookup plugin 'dict'. Error was a <class 'ansible.errors.AnsibleError'>, original message: with_dict expects a dict, got type <type 'list'>, terms contains [{u'foo': u'bar'}]"
}

play.yml

---
- hosts: localhost
  gather_facts: False
  connection: local
  vars:
    mydict:
      foo: bar
  tasks:
    - debug: 
        msg: "{{ lookup('dict', mydict) }}"