How to sort a list of string dates

Question

I need some help with sorting a list of dates. I have a few lines of code and I tried a lot of different solutions I found on the internet but none of them seems to work.

import datetime

class WhiteChocolate:
    def __init__(self, vervaldatum):
        self.vervaldatum = vervaldatum


WhiteChocoStock = []

WhiteChocoStock.append(WhiteChocolate("22/04/2014"))
WhiteChocoStock.append(WhiteChocolate("21/04/2015"))
WhiteChocoStock.append(WhiteChocolate("12/12/2013"))

test = sorted(WhiteChocoStock, key=lambda x: datetime.datetime.strptime(x, '%d/%m/%Y'))

I don't know what I'm doing wrong.

Are you getting an error, or it just give an unexpected result? — Christian Tapia
– Christian Tapia, Commented Dec 28, 2013 at 18:44

Burhan Khalid · Accepted Answer · 2013-12-28 18:49:59Z

1

You are trying to sort a list of objects, when you need to sort by the vervaldatum property of each of the objects in your list, which contains the date string:

sorted(WhiteChocoStock, key=lambda x: datetime.datetime.strptime(x.vervaldatum, '%d/%m/%Y'))

answered Dec 28, 2013 at 18:49

Burhan Khalid

175k20 gold badges254 silver badges291 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to sort a list of string dates

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related