def _region_list():
    """Returns a static list of AWS regions for bash completion"""
    return ['eu-north-1', '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']
