How to sort sublists within a list according to specific attribute in python

Question

I have a list in python that looks like below

a=[['David','McConor','123000','900']
['Timothy','Gerrard','123001','901']]

I desire to sort the list above using the last entry of each sublist as the key. I have succesfully sorted the list lexicographically using the a.sort() function. Now i want to sort the list and print each sublist such that the list with '901' comes first is my problem.

What I tried

##defining what mykey is where am stuck
mykey=
##the sort function has overloads for key
a.sort(key=mykey,reverse=True)

Thanks for your contribution.

Dejene T. · Accepted Answer · 2021-11-07 07:45:30Z

0

You can use an alternative way

sorted(a, key = lambda x: (x[-1]), reverse=True)

answered Nov 7, 2021 at 7:45

Dejene T.

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Comments

Pedro Maia · Accepted Answer · 2021-11-07 07:37:08Z

0

key expects a function, you can create a simple lambda function to check for the last item:

a.sort(key=lambda x: x[-1],reverse=True)

answered Nov 7, 2021 at 7:37

Pedro Maia

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3 Comments

user16612111 Over a year ago

OKay trying it right away

user16612111 Over a year ago

this is ingenius, thanks

Pedro Maia Over a year ago

You're welcome.

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