Internal error during connect: module 'dateutil' has no attribute '__version__'

[chalb0]

K-Shake&Tune module branch

• I confirm using the main branch

Version

5.0

Describe the bug and expected behavior

On install and use of [shaketune] in printer.cfg, klipper state becomes disconnected with the error:

Klipper reports: ERROR

Internal error during connect: module 'dateutil' has no attribute 'version'

Once the underlying issue is corrected, use the "RESTART"
command to reload the config and restart the host software.
Printer is halted

However dateutil is installed with an atribute in version:

$ python3 -c "import dateutil; print(dateutil.__version__)"
2.8.2

I have attempted a reinstall.

I did notice that looking at the head of klippy.py it was showing python2, changing this for 3 still has the same issue.

$ head -n 1 /home/pi/klipper/klippy/klippy.py
#!/usr/bin/env python3

Any suggestions?

Additional information and klippy.log

No response