boto3 is the Amazon Web Services (AWS) Software Development Kit (SDK) for Python, which allows Python developers to write software that makes use of services like Amazon S3, Amazon EC2, and others.

Here’s a basic example of using boto3 to interact with Amazon S3:

In this code:

1. We import the boto3 module.
2. We create an S3 client. This client will provide us with a way to interact with the S3 service.
3. We use the list_buckets method to get a list of all buckets in our S3.
4. Finally, we iterate over the list of buckets and print each one’s name.

Remember, to use AWS resources securely, you need to configure your credentials. This can be done in multiple ways like storing in a credentials file, setting environment variables, etc. Please visit Configuration and credential file settings for more information.

Also, be careful with any operation that can change the state of your resources, e.g., deleting or updating resources. Always double-check your code to avoid unintentional actions.

Note: The use of AWS services may result in charges. Always monitor your usage and control your spending by setting up billing alarms and budgets in the AWS Management Console.