muhanLuo/pacu_error.md

Created June 15, 2026 00:09

Select an option

Learn more about clone URLs
Clone this repository at <script src="https://gist.github.com/muhanLuo/66d9cf6a67775f79cedad4c3b15f54bb.js"></script>
Save muhanLuo/66d9cf6a67775f79cedad4c3b15f54bb to your computer and use it in GitHub Desktop.

Fix for Pacu: 'Namespace' object has no attribute 'cli_binary_format'

Raw

PACU `awscli` Error

When you try to run an AWSCLI command in Pacu, you get the following error:

Pacu (beanstalk_secrets_session:beanstalk_admin) > aws --sts get-caller-identity

'Namespace' object has no attribute 'cli_binary_format'

Downgrade your version of AWS CLI from v2 to v1.

pipx install awscli

Pacu (beanstalk_secrets:beanstalk_admin) > aws --version
aws-cli/1.45.29 Python/3.12.3 Linux/6.18.33.1-microsoft-standard-WSL2 botocore/1.43.29

As of June 2026, Pacu does not seem to be completely compatible with AWS CLI2.