title: ansible config file not found; using defaults
body: <p>I have created venv called <code>ansible</code> and installed ansible using
  <code>pip3 install ansible</code>. Now while checking ansible version <code>config file = None</code></p>
  <pre><code>ansible --version
  ansible 2.9.12
    config file = None
    configured module search path = ['/home/ansible/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
    ansible python module location = /home/ansible/ansible/lib/python3.7/site-packages/ansible
    executable location = /home/ansible/ansible/bin/ansible
    python version = 3.7.4 (default, Aug 18 2019, 12:04:45) [GCC 5.4.0 20160609]
  </code></pre>
  <p>When I run ansible command it says <code>No config file found; using defaults</code> but which is that defaults file and where it can be found ?</p>