presence: Update python2 -> python3

Changes to support moving to python3.

Tested:
    No change in output using python2 before & after updates
    Run using python3 generated output without error

Change-Id: Ifcaf3ce84723d36a1dc2b4116646f8d1101b64e1
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
1 file changed