Python3 Installation on RHEL

[gregory-barr]

Describe the bug
When installing xpra using rpms on RHEL8 (using rhel/ubi8 as base in a container installation via podman), the installation changes the shebang from /usr/bin/python3 to /usr/libexec/platform-python, which then defaults to python3.6. The preference is to use the latest 3.11.

To Reproduce
Steps to reproduce the behavior:

1. Start with rhel8/ubi
2. Configure yum repos to use almalinux
3. yum install xpra-5.0.7
4. Inspect /usr/bin/xpra and noticed changed shebang to /usr/libexec/platform-python

System Information (please complete the following information):

• Server OS: RHEL8.9
• Xpra version: 5.0.7

Additional context
Setting alternatives for python3 to python3.11 does not have any affect.

[gregory-barr]

More info:

Installed python3.11

alternatives --display python3
Current `best' version is /usr/bin/python3.11

Attached is yum install xpra output which shows python36 dependency
Yum Install with dependencies.txt

Attached also is "python3 version.py" output after installation.
version.py output.txt

[totaam]

The preference is to use the latest 3.11.

You cannot simply switch python version.
The xpra package is tied to a specific python version.

In version 6 (available from the beta repository), xpra will install python3.11-xpra and can co-exist with other versions, as is done on Fedora where you also have the choice of installing python3.12-xpra, python3.10-xpra, etc..