id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
8	Replace .cvs by json configs	Enrico Schwass	Enrico Schwass	"json is better suited for configurations that relate to embedded parts of the configuration

class RecurringPhaseSequence:
  def init(self, repetitions, list_of_phases):

A schedule would be sequence of RecurringPhaseSequences.
This can be easily serialized as json
"	task	closed	trivial	milestone1	Backend	1.0	fixed