In this AWS Python & Boto3 video lesson we want to learn about Attach AWS Policy to User with Python & Boto3, we already have talked that in Amazon Web Services (AWS) user policy is a document that defines permissions and access controls for specific AWS Identity and Access Management (IAM) user. policy is JSON formatted document that grants or denies permissions to perform specific actions on AWS resources. User policies are critical component of AWS security as they enable administrators to manage access to AWS resources based on specific requirements. with user policies an administrator can define granular permissions and access controls for individual users or groups of users and it ensures that users only have the permissions necessary to perform their job duties. AWS user policy can specify permissions for different AWS resources including Amazon S3 buckets, Amazon EC2 instances and AWS Lambda functions. Policies can also be created to allow or deny access to specific API actions such as the ability to launch new EC2 instances or to create new S3 buckets.