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from ecflow import Defs,Suite,Family,Task,RepeatDay,RepeatEnumerated,RepeatString,RepeatInteger,RepeatDateList

def add_tasks(fam):
    for i in range(1,3):
        fam.add_task(Task("t{}".format(i)))
                
defs = Defs()
s1 = defs.add_suite("s1")
f1 = s1.add_family("f1")
f1.add_repeat( RepeatDate("YMD",20100111,20100115,2) )
add_tasks(f1)

f2 = s1.add_family("f2")
f2.add_repeat( RepeatInteger("count",0,100,2)  )
add_tasks(f2)

f3 = s1.add_family("f3")
f3.add_repeat( RepeatEnumerated("enum",["red", "green", "blue" ] )  )
add_tasks(f3)

f4 = s1.add_family("f4")
f4.add_repeat( RepeatString("enum",["a", "b", "c" ] )  )
add_tasks(f4)

f5 = s1.add_family("f5")
f5.add_repeat( RepeatDay(1)  )
add_tasks(f5) 

f6 = s1.add_family("f6")
f6.add_repeat( RepeatDateList("YMD",[20130101, 20130102, 20130103 ]) ) # arbitary date list
add_tasks(f6)

The following examples show alternative styles that produces the same definition:

defs = Defs(
        Suite("s1",
          Family("f1",
             RepeatDate("YMD",20100111,20100115,2),
             [ Task("t{}".format(i)) for i in range(1,3) ] ),
          Family("f2",
             RepeatInteger("count",0,100,2),
             [ Task("t{}".format(i)) for i in range(1,3) ] ),
          Family("f3",
             RepeatEnumerated("enum",["red", "green", "blue" ] ),
             [ Task("t{}".format(i)) for i in range(1,3) ] ),
          Family("f4",
             RepeatString("enum",["a", "b", "c" ] ),
             [ Task("t{}".format(i)) for i in range(1,3) ] ),
          Family("f5",
             RepeatDay(1),
             [ Task("t{}".format(i)) for i in range(1,3) ] ),
          Family("f6",
             RepeatDateList("YMD",[20130101,20130102,20130103]),
             [ Task("t{}".format(i)) for i in range(1,3) ] )))
defs = Defs() + Suite("s1") 
defs.s1 += [ Family("f{}".format(i)).add(
               [ Task("t{}".format(i)) for i in range(1,3) ]) 
             for i in range(1,6) ]   
defs.s1.f1 += RepeatDate("YMD",20100111,20100115,2) 
defs.s1.f2 += RepeatInteger("count",0,100,2) 
defs.s1.f3 += RepeatEnumerated("enum",["red", "green", "blue" ] ) 
defs.s1.f4 += RepeatString("enum",["a", "b", "c" ] ) 
defs.s1.f5 += RepeatDay(1) 
defs.s1.f6 += RepeatDateList("YMD",[20130101,20130102,20130103])  

In the second example above we use 'defs.s1.*' to reference a node by name. This is useful in small designs but will produce maintenance issues in large designs IF the node names are changed.