Helm registry login fails with script errors

Solution Verified - Updated -

Issue

When you attempt helm registry login quay.io, you may end up with errors:

Username: Traceback (most recent call last):
File "bin/cnr", line 6, in <module>
File "cnrclient/commands/cli.py", line 54, in cli
File "cnrclient/commands/command_base.py", line 66, in call
File "cnrclient/commands/command_base.py", line 70, in exec_cmd
File "cnrclient/commands/login.py", line 36, in _call
EOFError: EOF when reading a line
Failed to execute script cnr
Error: plugin "registry" exited with error

Environment

Red Hat Quay.io

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