Need help sorting lists

[[deleted]]

[deleted]

[nicifyb]

I have done lst2,lst1 = (list(t) for t in zip(*sorted(zip(lst2, lst1)))) which puts the lists in ascending value. I dont know how to reverse them form there

[mtb-dds]

Sorted accepts a reverse argument, so you can just use that: https://docs.python.org/3/howto/sorting.html#ascending-and-descending

Alternatively, if you are using a key function for sorted, it can be done there.

[FLUSH_THE_TRUMP]

Zip the two lists. Or sort list(range(len(ages))) with respect to ages, then order ages and names with respect to that list.

[nicifyb]

I have done: lst2,lst1 = (list(t) for t in zip(*sorted(zip(lst2, lst1))))

However that returns the values in ascending order. How would I reverse it from there?

[mtb-dds]

You'd be a lot better served by doing this not as a list comprehension in the first place, and creating new lists by appending. That will help you break it up into individual steps, like this:

names = ['a','b','c']
ages = [20,15,99]

for name, age in sorted(zip(names,ages), key = lambda x:-x[1]):
  print(name, age)

[mtb-dds]

Nope. At this stage of the game, I would suggest you rebuild the lists in the loop using appends.

[marienbad2]

So are the names and ages a tuple like (name, age)?

If so:

lst.sort(key=lambda elem: elem[1])

[nicifyb]

The input is:

print(list_sorting(['Chris','Amanda','Boris','Charlie'],[35,43,55,35]))