Lists-compare lists

[elhetch]

i have a 2 set of lists each set has 4 sets , i would like to compare the  1st list(1st set) with the 2nd list (2nd set):
the code doesn't return any errors , it is just doesn't return the correct result:

for line in all_lines:
    start=line.start
    print start
    end=line.end
    print end'
  if cmp(start,end)==0:
        print "One shape"
    else:
        print "Not one shape"