> Here's an example: > > lol1 = [['a'], ['a', 'b', 'c'], ['d', 'e', 'f'], ['g', 'h', 'i', 'j']] > lol2 = [['d', 'e', 'f'], ['k', 'l', 'm'], ['d'], ['f', 'g'], ['a']] > > I want a function which returns > > mergelol = [['a'], ['a', 'b', 'c'], ['d', 'e', 'f'], ['g', 'h', 'i', > 'j'], ['k', 'l', 'm'], ['d']] why isn't ['f', 'g'] in mergelol? // m -