Ansible is not picking up installed hvac module after installing on mac OS - ansible

Question

My ansible play uses hashivault_read. I installed this module on my mac. When I try to execute the playbook, this task errors out saying No module named hvac. When I see pip list I can find this module on my mac.
Did anyone face this issue before on mac? If someone has a resolution to this please comment.
Ansible Properties
ansible-playbook 2.8.0
config file = /Users/mdhoke/ansible.cfg
configured module search path = [u'/Users/mdhoke/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
ansible python module location = /Library/Python/2.7/site-packages/ansible
executable location = /usr/local/bin/ansible-playbook
python version = 2.7.10 (default, Feb 22 2019, 21:55:15) [GCC 4.2.1 Compatible Apple LLVM 10.0.1 (clang-1001.0.37.14)]
I assume ansible is trying to find hvac module under /Library/Python/2.7/site-packages/ansible which is not present but hashivault_read is present.
hvac module is present under /Library/Python/2.7/site-packages.
Error I am getting:
fatal: [vault]: FAILED! => {"changed": false, "module_stderr": "Shared connection to vault closed.\r\n", "module_stdout": "Traceback (most recent call last):\r\n File \"/home/mdhoke/.ansible/tmp/ansible-tmp-1567120470.9-210430890667193/AnsiballZ_hashivault_read.py\", line 114, in <module>\r\n _ansiballz_main()\r\n File \"/home/mdhoke/.ansible/tmp/ansible-tmp-1567120470.9-210430890667193/AnsiballZ_hashivault_read.py\", line 106, in _ansiballz_main\r\n invoke_module(zipped_mod, temp_path, ANSIBALLZ_PARAMS)\r\n File \"/home/mdhoke/.ansible/tmp/ansible-tmp-1567120470.9-210430890667193/AnsiballZ_hashivault_read.py\", line 49, in invoke_module\r\n imp.load_module('__main__', mod, module, MOD_DESC)\r\n File \"/tmp/ansible_hashivault_read_payload_kE0iQk/__main__.py\", line 3, in <module>\r\n File \"/tmp/ansible_hashivault_read_payload_kE0iQk/ansible_hashivault_read_payload.zip/ansible/module_utils/hashivault.py\", line 4, in <module>\r\n
ImportError: No module named hvac\r\n",
"msg": "MODULE FAILURE\nSee stdout/stderr for the exact error", "rc": 1}

Answer 1

I managed to solve this issue for myself yesterday. I assume you are running ansible locally from your mac and connecting to the remote server (vault). If so, you will need to install hvac on the vault server too.
the following code snippet will suffice
- name: install hvac pip package
become: yes
become_method: sudo
pip:
name: hvac
state: present
obviously for the above play to work, you will need python-pip installed on the vault server too and in order to install that, you will need to enable epel-release. The below coe will take care of those dependencies.
- name: enable epel-relase and install pip
become: yes
become_method: sudo
yum:
name: "{{ item }}"
state: present
with_items:
- epel-release
- python-pip

Answer 2

Actually hashivault_read module is expected to be executed on a local machine. So delegating it to local machine solved my issue.