How to get the region of the current user from boto?

You should be able to read the region_name from the session.Session object like

my_session = boto3.session.Session()my_region = my_session.region_name

region_name is basically defined as session.get_config_variable('region')

Another option, if you are working with a boto3 client, is:

import boto3client = boto3.client('s3') # example client, could be anyclient.meta.region_name

Took some ideas from here and other posts, and I believe this should work for pretty much any setup, whether local or on any AWS service including Lambda, EC2, ECS, Glue, etc:

def detect_running_region():    """Dynamically determine the region from a running Glue job (or anything on EC2 for    that matter)."""    easy_checks = [        # check if set through ENV vars        os.environ.get('AWS_REGION'),        os.environ.get('AWS_DEFAULT_REGION'),        # else check if set in config or in boto already        boto3.DEFAULT_SESSION.region_name if boto3.DEFAULT_SESSION else None,        boto3.Session().region_name,    ]    for region in easy_checks:        if region:            return region    # else query an external service    # https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-identity-documents.html    r = requests.get("http://169.254.169.254/latest/dynamic/instance-identity/document")    response_json = r.json()    return response_json.get('region')