b were lists of objects, each with a name property (e.g.
a1 = A("1"),
b1 = B("1"), etc.), how would I check for equivalency? I'm currently doing this:
aList = [ a1, a2, a3, a4, a5 ] bList = [ b1, b2 ] aNameList =  bNameList =  for i in aList: aNameList.append( i.name ) for i in bList: bNameList.append( i.name ) match = set(aNameList) & set(bNameList) >>> set(['1', '2'])
But it seems kind of long and unnecessary. What is a better way to do this?
You can use list comprehensions instead to replace those temporary lists and for-loops of your example:
match = set( [ x.name for x in aList ] ) & set ( [ x.name for x in bList ] )