No valid CloudLinux License Found: rhnreg_ks cannot import name 'idn_puny_to_unicode'

Issue

• CloudLinux Manger reports

  "No valid CloudLinux License Found"

• Attempt to activate the license fails with the following error:

  # /usr/sbin/rhnreg_ks --activationkey=CL-ZZZZZZZZZZZZZZ
  Traceback (most recent call last):
  File "/usr/sbin/rhnreg_ks", line 25, in <module>
  from rhn.connections import idn_puny_to_unicode
  ImportError: cannot import name 'idn_puny_to_unicode'

Environment

• CloudLinux OS

Solution

1. Find corrupted package:

   # rpm -V dnf-plugin-spacewalk python3-dnf-plugin-spacewalk python3-rhn-check python3-rhn-client-tools python3-rhnlib python3-rhn-setup rhn-check rhn-client-tools rhnlib rhnsd rhn-setup

2. Download the broken ones from CoudLinux repo and reinstall them from RPM with yum localinstall

Cause

Broken rhn-client package files.