title: How to enforce to use iam policy in aws lamda python
body: <p>Let me describe my issue.
  I have created an iam policy - <strong>Policy A</strong>
  There are two aws managed iam policies - <strong>Policy B</strong> and <strong>Policy C</strong></p>
  <p>I want to add a condition to the account, if anyone use Policy B or Policy C for their iam role, they must attach Policy A
  I hope this can be done using lamda, but not sure. If there any other way, please be kind to share with me.</p>
  <p>Thank you</p>