I have a large list of two element tuples. I want two separate lists: One list with the first element of every tuple, and the second list with the second element of every tuple.
Each tuple contains a datetime object followed by an integer. Here is a small sample of the original list: ((datetime.datetime(2005, 7, 13, 16, 0, 54), 315), (datetime.datetime(2005, 7, 13, 16, 6, 12), 313), (datetime.datetime(2005, 7, 13, 16, 16, 45), 312), (datetime.datetime(2005, 7, 13, 16, 22), 315), (datetime.datetime(2005, 7, 13, 16, 27, 18), 312), (datetime.datetime(2005, 7, 13, 16, 32, 35), 307), (datetime.datetime(2005, 7, 13, 16, 37, 51), 304), (datetime.datetime(2005, 7, 13, 16, 43, 8), 307)) I know I can use a 'for' loop and create two new lists using 'newList1.append(x)', etc. Is there an efficient way to create these two new lists without using a slow for loop? r -- http://mail.python.org/mailman/listinfo/python-list
