Sort a list that is embedded

[Whisper40]

Hello, i'm on a personnal project whose objective is to sort a list by name and not by first name.
However i have to keep the couple "name-firstname"

The user has to enter numbers in a list :

1

[0, 1]

These numbers correspond to people who are in this list :

1	listepersonnes = [['RIETTE', 'JEAN', 'H', '28'], ['LAPORTE', 'LUCIE', 'H', '38']]

I would like the result to be :

1	['LAPORTE', 'LUCIE'], ['RIETTE', 'JEAN']

I have do it..

1 2 3 4 5 6 7 8

listepersonnes = [['RIETTE', 'JEAN', 'H', '28'], ['LAPORTE', 'LUCIE', 'H', '38']] listetrie = [] for i in range (len(listepersonnes)):     listetrie.append(listepersonnes[i][0])     listetrie.sort()     listetrie.append(listepersonnes[i][1])    print(listetrie)

I really don't know how to do it....
I have to do it with function too..

Thanks for help

[Mekire]

I'm not quite clear on what you want the user's input numbers to do.  Could you provide some more detailed input and outputs?

Also:

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>>> [person[:2] for person in sorted(listepersonnes)] [['LAPORTE', 'LUCIE'], ['RIETTE', 'JEAN']] >>>

[Whisper40]

Hello, sorry i'm french ahah :)
Your code is working correctly but he doesn't do the job i need ;)

1 2	listpeople = [['RIETTE', 'JEAN', 'H', '28'], ['LAPORTE', 'LUCIE', 'H', '38']]

INPUT :
I ask to enter number or numbers for example it should do the job for: 0, 2
So I want the code to make sort from the 0 to the 2.

PROGRAM :

I have to make a function ( a definiton ) like this

1 2 3

def sortlist(INPUT):  ????????????  ????????????

OUTPUT :
It will sort the name of person like what you did past.

1	[['LAPORTE', 'LUCIE'], ['RIETTE', 'JEAN']]

---

Problem solved ;)with

1	"return sorted([i[:2] for i in [maliste[j] for j in selection]])"

[nilamo]

If sorting in-place is fine, then passing the key parameter to .sort is a faster way to do it than sorted().

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>>> listpeople = [['RIETTE', 'JEAN', 'H', '28'], ['LAPORTE', 'LUCIE', 'H', '38']] >>> sort_by = [0, 2] >>> sort_start, sort_end = sort_by >>> listpeople.sort(key=lambda person: person[sort_start:sort_end]) >>> listpeople [['LAPORTE', 'LUCIE', 'H', '38'], ['RIETTE', 'JEAN', 'H', '28']]