How To Fix Error in Python application - IndexError: string index out of range

Fix the 'IndexError: string index out of range' error in Python applications. Step-by-step troubleshooting guide with causes and solutions

admin
admin
 Sep 3, 2025  0  15
 Add to Reading List
How To Fix Error in Python application - IndexError: string index out of range

šŸ Fix: Python Selector is not available Error on CloudLinux

If all cPanel accounts on your server show the error:

Python Selector is not available

and installation attempts throw an error like:

IndexError: string index out of range ... maj_ver = f'{maj_ver[0]}.{maj_ver[1:]}' IndexError: string index out of range

then you are affected by a known CloudLinux Manager (lvemanager) bug.

šŸ–„ļø Environment

  • CloudLinux Manager

  • Python Selector

  • cPanel

āœ… Solution

This issue was fixed in lvemanager-7.11.24-1.
To apply the fix, simply update lvemanager:

# yum update lvemanagerĀ 

šŸŽÆ Final Notes

  • After updating, restart cPanel services to ensure the Python Selector becomes available.

  • If CageFS is enabled, refresh it with:

# cagefsctl --force-update && cagefsctl -MĀ 

  • Always keep CloudLinux packages up to date to avoid compatibility errors with NodeJS/Python Selector.

Share

What's Your Reaction?

Like Like 0
Dislike Dislike 0
Love Love 0
Funny Funny 0
Angry Angry 0
Sad Sad 0
Wow Wow 0