On Thursday, March 2, 2017 at 11:27:34 AM UTC-5, Peter Otten wrote: > Andrew Zyman wrote: > ..... > ..... > > End result: > > ll =[ [a,1], [b,2], [c,3], [blah, 1000, 'new value'] ] > > >>> outer = [["a", 1], ["b", 2], ["c", 3], ["blah", 1000]] > >>> for inner in outer: > ... if inner[0] == "blah": > ... inner.append("new value")
thank you. this will do. Just curious, is the above loop can be done in a one-liner? > While this is what you are asking for it will get slower as the list grows. > A better solution uses a dictionary: > >>> lookup = {inner[0]: inner[1:] for inner in outer} Yes, understood, i don't expect the list to grow above a few thousand entries. But i do agree that utilizing the dict is more efficient. -- https://mail.python.org/mailman/listinfo/python-list