NoRegionError when default region defined in config file

awslogs produces a NoRegionError when using an AWS profile that has a default region defined in ~/.aws/config but no region defined in the profile's section in ~/.aws/credentials. No error is produced after adding the region in the profile's section in the credentials file.

Version: 0.15.0
Python: 3.9.18 (main, Jan 24 2024, 16:34:55)
[Clang 14.0.5 (https://github.com/llvm/llvm-project.git llvmorg-14.0.5-0-gc1238
boto3 version: 1.34.131
Platform: FreeBSD-13.2-RELEASE-p11-amd64-64bit-ELF
Args: ['/home/myusername/.local/bin/awslogs', 'get', '/aws/lambda/nameofmylambda, '-s1h', '--profile', 'myusername-cli']
Config: {options}

Traceback (most recent call last):
File "/home/myusername/.local/lib/python3.9/site-packages/awslogs/bin.py", line 206, in main
logs = AWSLogs(**vars(options))
File "/home/myusername/.local/lib/python3.9/site-packages/awslogs/core.py", line 88, in init
self.client = boto3_client(
File "/home/myusername/.local/lib/python3.9/site-packages/awslogs/core.py", line 45, in boto3_client
return session.client(
File "/home/myusername/.local/lib/python3.9/site-packages/boto3/session.py", line 297, in client
return self._session.create_client(
File "/home/myusername/.local/lib/python3.9/site-packages/botocore/session.py", line 997, in create_client
client = client_creator.create_client(
File "/home/myusername/.local/lib/python3.9/site-packages/botocore/client.py", line 161, in create_client
client_args = self._get_client_args(
File "/home/myusername/.local/lib/python3.9/site-packages/botocore/client.py", line 520, in _get_client_args
return args_creator.get_client_args(
File "/home/myusername/.local/lib/python3.9/site-packages/botocore/args.py", line 100, in get_client_args
final_args = self.compute_client_args(
File "/home/myusername/.local/lib/python3.9/site-packages/botocore/args.py", line 219, in compute_client_args
endpoint_config = self._compute_endpoint_config(
File "/home/myusername/.local/lib/python3.9/site-packages/botocore/args.py", line 369, in _compute_endpoint_config
return self._resolve_endpoint(**resolve_endpoint_kwargs)
File "/home/myusername/.local/lib/python3.9/site-packages/botocore/args.py", line 474, in _resolve_endpoint
return endpoint_bridge.resolve(
File "/home/myusername/.local/lib/python3.9/site-packages/botocore/client.py", line 625, in resolve
resolved = self.endpoint_resolver.construct_endpoint(
File "/home/myusername/.local/lib/python3.9/site-packages/botocore/regions.py", line 229, in construct_endpoint
result = self._endpoint_for_partition(
File "/home/myusername/.local/lib/python3.9/site-packages/botocore/regions.py", line 277, in _endpoint_for_partition
raise NoRegionError()
botocore.exceptions.NoRegionError: You must specify a region.

Start in awslogs/core.py at boto3_client around line 45 and AWSLogs initialization around line 88, then reproduce the command with a profile whose region is only in ~/.aws/config. Check how the session and client receive the profile and region, and verify that the command succeeds without duplicating the region in ~/.aws/credentials.