Operating system is Ubuntu 16.04
Python version is 3
Installed the AWS CLI using PIP
AWS CLI version is aws-cli/1.16.309 Python/3.6.9 Linux/4.20.17-042017-generic botocore/1.13.45
I set the HMAC creds correctly and type the following in my command line:
ncheaz@thinkburger:~/Projects/drupal-interact$ aws --endpoint-url 'https://control.cloud-object-storage.cloud.ibm.com/v2/endpoints' s3 ls
An HTTP Client raised and unhandled exception: __init__() got an unexpected keyword argument 'ssl_context'
Check your urllib3 version. Upgrading urllib3 to 1.25.11 (latest) solved the problem for me. https://pypi.org/project/urllib3/1.25.11/