How To Fix Error installing Python Selector using the Wizard In Cloudlinux Cpanel

🐍❌ Issue: Error Installing Python Selector via Wizard in CloudLinux

When attempting to install Python Selector using the CloudLinux Python Selector Wizard, you may encounter the following error:

[ERROR]: output of the command:
yum groupinstall -y alt-python27 alt-python310 alt-python311 alt-python312 alt-python33 alt-python34 alt-python35 alt-python36 alt-python37 alt-python38 alt-python39
Error: Nothing to do.

🌐 Environment:

• ✅ CloudLinux OS

• ✅ Python Selector

• ❌ Wizard fails to install Python versions

🛠️ Solution: Manual Installation of Python Selector

This issue happens because the Wizard tries to install all Python versions at once, some of which may not exist in your current repository setup.

Instead, install Python Selector manually using the commands below.

✅ Step 1: Install Core Python Selector Components

Run the following as root:

This installs the necessary Python interpreter versions and utilities for Python Selector.

🔧 Step 2: Enable Compiler Access in WHM

To build additional Python modules (via pip), your users may need access to compilers (GCC/Make).

Do this in WHM:

1. Go to WHM → Security Center → Compiler Access

2. ✅ Enable compiler access for all users (temporarily or as needed)

🛑 Make sure to disable compiler access later if you don't want users compiling binaries on the server.

🔄 Step 3: Refresh CageFS

Finally, update and remount CageFS to apply the new environments:

✅ After Installation

• Log in to a cPanel user account

• Go to Setup Python App

• You should now see multiple Python versions available for app creation 🎉