Unable to run CARR script from NSX Manager due to Python version error.

Products

• VMware NSX

Issue/Introduction

When executing the Certificate Analyzer, Results, and Recovery (CARR) script from an NSX Manager appliance, the process fails with the following error:

Installed python3 version is <version older than 3.8>. It should be equal or greater than 3.8 version.

Environment

NSX 4.0.x

NSX 3.2.1

Cause

NSX versions prior to 3.2.3.x and 4.0.x ship with an onboard Python 3 version lower than 3.8.

Resolution

Run the CARR script from an alternative system that meets the Python version requirement:

1. Use an existing system: Execute the script from another virtual machine (such as a vCSA) that has Python 3.8 or later installed.

2. Deploy a new VM: If no suitable machine is available, deploy a new VM specifically for this task. Refer to Create a virtual machine for running the Certificate Analyzer, Results and Recovery (CARR) Script for setup details.

Additional Information

Checking Python Version:
Verify the installed Python version on your system by running:

python --version

Python Version Capabilities:

Python 3.8 – 3.12: Supports both online and offline execution.

Python 3.13+: Requires active internet connectivity on the client machine (cannot be run offline).

Please refer to this KB article for more details.