s3_client = boto3.client('s3')
File "/var/task/boto3/__init__.py", line 83, in client
return _get_default_session().client(*args, **kwargs)
File "/var/task/boto3/session.py", line 263, in client
aws_session_token=aws_session_token, config=config)
File "/var/task/botocore/session.py", line 836, in create_client
client_config=config, api_version=api_version)
File "/var/task/botocore/client.py", line 65, in create_client
cls = self._create_client_class(service_name, service_model)
File "/var/task/botocore/client.py", line 89, in _create_client_class
base_classes=bases)
File "/var/task/botocore/hooks.py", line 227, in emit
return self._emit(event_name, kwargs)
File "/var/task/botocore/hooks.py", line 210, in _emit
response = handler(**kwargs)
File "/var/task/boto3/utils.py", line 61, in _handler
module = import_module(module)
File "/var/task/boto3/utils.py", line 52, in import_module
__import__(name)
File "/var/task/boto3/s3/inject.py", line 15, in <module>
from boto3.s3.transfer import create_transfer_manager
File "/var/task/boto3/s3/transfer.py", line 127, in <module>
from s3transfer.exceptions import RetriesExceededError as \
File "/var/task/s3transfer/__init__.py", line 134, in <module>
import concurrent.futures
File "/var/task/concurrent/futures/__init__.py", line 8, in <module>
from concurrent.futures._base import (FIRST_COMPLETED,
File "/var/task/concurrent/futures/_base.py", line 357
raise type(self._exception), self._exception, self._traceback
^
SyntaxError: invalid syntax