rod@cnc:~/Raptor$ linuxcnc Raptor.ini
LINUXCNC - 2.6.0~pre
Machine configuration directory is '/home/rod/Raptor'
Machine configuration file is 'Raptor.ini'
Starting LinuxCNC...
io started
halcmd loadusr io started
Traceback (most recent call last):
  File "/home/rod/Raptor/python/hal_racktoolchange", line 3, in <module>
    import hal_racktoolchange
  File "/home/rod/Raptor/python/hal_racktoolchange.py", line 8, in <module>
    import emccanon
ImportError: No module named emccanon
Raptor.hal:237: hal_racktoolchange exited without becoming ready
Shutting down and cleaning up LinuxCNC...
Running HAL shutdown script
Cleanup done
LinuxCNC terminated with an error.  You can find more information in the log:
    /home/rod/linuxcnc_debug.txt
and
    /home/rod/linuxcnc_print.txt
as well as in the output of the shell command 'dmesg' and in the terminal