Sorting a list in Python containing tuples with Selection Sort

Question

I would like to sort the following list using selection sort:

list1 = [(1,2,3),(3,6,4),(4,7,9)]

How can I sort the above by the second element of each tuple (2,6,7) ?

I have the following code for a normal selection sort, but I do now know how to do it with tuples.

def selection_sort(list):
    for i in range(len(list)):
        mini = min(list[i:])
        min_index = list[i:].index(mini)
        list[i + min_index] = list[i] 
        list[i] = mini

Answer 1

You can tell min to use the second element for comparisons:

mini = min(list[i:], key=lambda l: l[1])

Btw, it's bad to call your variable list because then you can't use Python's own list anymore and because you're confusing everyone. Also, you didn't even make it a list but a tuple, preventing the in-place sorting that you're trying.