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Reusable and Clean Python Code

Introduction

  • We'll use the AWS Boto3 library to deploy a resource to AWS.
  • We should strive to write clean and reusable code.

Install Boto3

  • Boto3 is the name of the Python SDK for AWS. It allows you to directly create, update and delete AWS resources from your Python scripts.
  • How to install Boto3: From the command line, run pip install boto3.
  • The function, when run, will create an S3 bucket in AWS.
  • To authenticate to AWS:
    • From the command line, run aws configure.
    • I was prompted to enter the following information, obtained from my AWS Console: Access Key ID, Secret Access Key, AWS Region, and Output Format.
    • For the default region, I chose eu-west-3, but this resulted in an error when I ran the script.
    • Apparently, the CreateBucket operation isn't allowed in all regions. The S3 Bucket will default to us-east-1 if you don't specify the region.
    • I ran aws configure again and changed the default region to us-east-1. After this change, the script worked and the bucket was created correctly.
  • The final code can be found here.
  • There's the option, as pointed out in the forum, to specify the region in the script itself.
  • To run the code and create the S3 Bucket: from the command line, run python s3bucket.py cloudskills808, where cloudskills808 is the name of the bucket to be created.

This is the final result, with the S3 Bucket already up and running in AWS.

AWS Portal