# Buggy code
def create_or_update_identity(connection, module, region, account_id):
    identity = module.params.get("identity")
    changed = False
    verification_attributes = get_verification_attributes(connection, module, identity)
    if verification_attributes is None:
        if "@" in identity:
            call_and_handle_errors(
                module, connection.verify_email_identity, EmailAddress=identity
            )
        else:
            call_and_handle_errors(
                module, connection.verify_domain_identity, Domain=identity
            )
        verification_attributes = get_verification_attributes(
            connection, module, identity
        )
        changed = True
    elif verification_attributes["VerificationStatus"] not in ("Pending", "Success"):
        module.fail_json(
            msg="Identity "
            + identity
            + " in bad status "
            + verification_attributes["VerificationStatus"],
            verification_attributes=camel_dict_to_snake_dict(verification_attributes),
        )

    notifications_changed, notification_attributes = update_identity_notifications(
        connection, module
    )
    changed |= notifications_changed

    identity_arn = "arn:aws:ses:" + region + ":" + account_id + ":identity/" + identity

    module.exit_json(
        changed=changed,
        identity=identity,
        identity_arn=identity_arn,
        verification_attributes=camel_dict_to_snake_dict(verification_attributes),
        notification_attributes=camel_dict_to_snake_dict(notification_attributes),
    )


# Traceback (TypeError)
Traceback (most recent call last):
File "/tmp/ansible_FTBGdl/ansible_module_aws_ses_identity.py", line 448, in <module>
main()
File "/tmp/ansible_FTBGdl/ansible_module_aws_ses_identity.py", line 443, in main
create_or_update_identity(connection, module, region, account_id)
File "/tmp/ansible_FTBGdl/ansible_module_aws_ses_identity.py", line 372, in create_or_update_identity
notifications_changed, notification_attributes = update_identity_notifications(connection, module)
File "/tmp/ansible_FTBGdl/ansible_module_aws_ses_identity.py", line 347, in update_identity_notifications
changed |= update_notification_topic(connection, module, identity, identity_notifications, notification_type)
File "/tmp/ansible_FTBGdl/ansible_module_aws_ses_identity.py", line 275, in update_notification_topic
if topic_key in identity_notifications:
TypeError: argument of type 'NoneType' is not iterable

# Fixed code
def create_or_update_identity(connection, module, region, account_id):
    identity = module.params.get("identity")
    changed = False
    verification_attributes = get_verification_attributes(connection, module, identity)
    if verification_attributes is None:
        if "@" in identity:
            call_and_handle_errors(
                module, connection.verify_email_identity, EmailAddress=identity
            )
        else:
            call_and_handle_errors(
                module, connection.verify_domain_identity, Domain=identity
            )
        verification_attributes = get_verification_attributes(
            connection, module, identity, retries=4
        )
        changed = True
    elif verification_attributes["VerificationStatus"] not in ("Pending", "Success"):
        module.fail_json(
            msg="Identity "
            + identity
            + " in bad status "
            + verification_attributes["VerificationStatus"],
            verification_attributes=camel_dict_to_snake_dict(verification_attributes),
        )

    if verification_attributes is None:
        module.fail_json(
            msg="Unable to load identity verification attributes after registering identity."
        )

    notifications_changed, notification_attributes = update_identity_notifications(
        connection, module
    )
    changed |= notifications_changed

    if notification_attributes is None:
        module.fail_json(msg="Unable to load identity notification attributes.")

    identity_arn = "arn:aws:ses:" + region + ":" + account_id + ":identity/" + identity

    module.exit_json(
        changed=changed,
        identity=identity,
        identity_arn=identity_arn,
        verification_attributes=camel_dict_to_snake_dict(verification_attributes),
        notification_attributes=camel_dict_to_snake_dict(notification_attributes),
    )