non python-3 compatible code in jobsub_submit and jobsub_submit_dag
line 310 of jobsub_submit and line 180 of jobsub_submit_dag reads:
for key, value in vars(options).iteritems()
Sadly, iteritems() has been taken out of the dictionary class in python3.
I commented out the offending lines in both commands for rc1, but I am unsure if this breaks anything besides the debug statetment the method is used in.
Does commenting the lines out break #21031? I do not think so but wanted to be sure.
(Lower priority if answer to above question is 'no')
Can you re-implement this in a more portable way?