Perform the following tasks to Install Python39.

1. Run the command to install Python39.

   yum install python39-pip

2. Execute these commands to set Python alternatives to Python39:

   update-alternatives --config python3
   update-alternatives --config python 

   Note:

   When prompted, select the number corresponding to Python39 option and press the Enter key.

   Note:

   After the OCSM upgrade, while installing any new packages using yum, some packages install Python 3.6 as a dependency. As a result, Python alternatives are changed which can cause unexpected problems in the OCSM. To avoid this, it is mandatory to verify that Python is pointing Python 39 after installing every package using yum by running the above two commands.