import os

regions = ['ap-south-1','eu-west-3', 'eu-west-2', 'eu-west-1','ap-northeast-2', 'ap-northeast-1', 'sa-east-1', 'ca-central-1', 'ap-southeast-1', 'ap-southeast-2', 'eu-central-1', 'us-east-1',
'us-east-2', 'us-west-1', 'us-west-2']

for element in regions:
    statement = "aws ec2 describe-instances --region " + element
    os.system(statement)


