Traceback bug :(

Version: 0.14.0
Python: 3.10.8 (main, Oct 12 2022, 09:32:59) [Clang 14.0.0 (clang-1400.0.29.102)]
boto3 version: 1.22.5
Platform: macOS-12.6-arm64-arm-64bit
Args: ['/opt/homebrew/bin/awslogs', 'get', '/aws/lambda/backend-graphql-dev-graphql', '--start=2h ago']
Config: {'aws_access_key_id': 'SENSITIVE', 'aws_secret_access_key': 'SENSITIVE', 'aws_session_token': 'SENSITIVE', 'aws_profile': 'SENSITIVE', 'aws_region': None, 'aws_endpoint_url': None, 'log_group_name': '/aws/lambda/backend-graphql-dev-graphql', 'log_stream_name': 'ALL', 'filter_pattern': None, 'watch': False, 'watch_interval': 1, 'output_group_enabled': True, 'output_stream_enabled': True, 'output_timestamp_enabled': False, 'output_ingestion_time_enabled': False, 'start': '2h ago', 'end': None, 'color': 'auto', 'query': None, 'func': 'list_logs'}

Traceback (most recent call last):
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/awslogs/bin.py", line 175, in main
logs = AWSLogs(**vars(options))
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/awslogs/core.py", line 89, in __init__
self.client = boto3_client(
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/awslogs/core.py", line 44, in boto3_client
return session.client(
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/boto3/session.py", line 299, in client
return self._session.create_client(
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/botocore/session.py", line 884, in create_client
client = client_creator.create_client(
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/botocore/client.py", line 102, in create_client
client_args = self._get_client_args(
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/botocore/client.py", line 384, in _get_client_args
return args_creator.get_client_args(
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/botocore/args.py", line 71, in get_client_args
final_args = self.compute_client_args(
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/botocore/args.py", line 148, in compute_client_args
endpoint_config = self._compute_endpoint_config(
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/botocore/args.py", line 234, in _compute_endpoint_config
return self._resolve_endpoint(**resolve_endpoint_kwargs)
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/botocore/args.py", line 320, in _resolve_endpoint
return endpoint_bridge.resolve(
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/botocore/client.py", line 465, in resolve
resolved = self.endpoint_resolver.construct_endpoint(
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/botocore/regions.py", line 196, in construct_endpoint
result = self._endpoint_for_partition(
File "/opt/homebrew/Cellar/awslogs/0.14.0_3/libexec/lib/python3.10/site-packages/botocore/regions.py", line 230, in _endpoint_for_partition
raise NoRegionError()
botocore.exceptions.NoRegionError: You must specify a region.

Reproduce the command shown in the report, then inspect awslogs/bin.py around main and awslogs/core.py around boto3_client, where the traceback reaches botocore's region resolution. Determine the expected behavior when no AWS region is configured and add or update the relevant test if the repository provides one; done means the reported invocation has defined behavior instead of the uncaught NoRegionError.

Written by the indexing model from the issue text.