I have a list of tuples that look something like this:
("Person 1",10) ("Person 2",8) ("Person 3",12) ("Person 4",20) What I want produced, is the list sorted in ascending order, by the second value of the tuple. So L[0] should be ("Person 2", 8) after sorting.
How can I do this? Using Python 3.2.2 If that helps.
You can use the key parameter to list.sort():
my_list.sort(key=lambda x: x[1]) or, slightly faster,
my_list.sort(key=operator.itemgetter(1)) (As with any module, you'll need to import operator to be able to use it.)
L.sort(key=operator.itemgetter(1)) in my code, but I get a NameError, that 'operator' is not defined. Do I need to import anything special?import operator to use the function. If you add that to your answer I'll mark it accepted.
You may also apply the sorted function on your list, which returns a new sorted list. This is just an addition to the answer that Sven Marnach has given above.
# using *sort method* mylist.sort(key=lambda x: x[1]) # using *sorted function* l = sorted(mylist, key=lambda x: x[1]) 
sorted instead of list.sort.
sorted on sets but myset.sort results in an error. So it appears to be the more general answer. def findMaxSales(listoftuples): newlist = [] tuple = () for item in listoftuples: movie = item[0] value = (item[1]) tuple = value, movie newlist += [tuple] newlist.sort() highest = newlist[-1] result = highest[1] return result movieList = [("Finding Dory", 486), ("Captain America: Civil War", 408), ("Deadpool", 363), ("Zootopia", 341), ("Rogue One", 529), ("The Secret Life of Pets", 368), ("Batman v Superman", 330), ("Sing", 268), ("Suicide Squad", 325), ("The Jungle Book", 364)] print(findMaxSales(movieList)) output --> Rogue One
