gistfile1.py

@task
def create_vpc(name='bototest'):
    vpcs = ec2.describe_vpcs(Filters=[{'Name': 'tag:Name', 'Values': [name]}])

    if not vpcs['Vpcs']:
        print 'creating'
        vpc_id = ec2.create_vpc(CidrBlock='10.0.0.0/16')['Vpc']['VpcId']
        ec2.get_waiter('vpc_available').wait(VpcIds=[vpc_id])
        ec2.create_tags(Resources=[vpc_id],
                        Tags=[{'Key': 'Name', 'Value': name}])