Boto3: List objects in a s3 bucket with a descending alphabetical order

[yannbriancon]

I need to get the last file of a bucket and I searched in the documentation but I could not find any way of getting the list of objects in a bucket in descending alphabetical order.

Is there a way to do it using boto3?

Thank you for your help

[swetashre]

@yannbriancon - Thank you for your post. You can use python's sorted function to sort the keys in descending order. Here is a code sample:

import boto3
s3 = boto3.client('s3')

res = s3.list_objects(Bucket='bucketname')
output = sorted(res['Contents'],key=lambda i:i['Key'],reverse=True)  
print(output)

Hope it helps.

[ryanhuntx]

@swetashre How would you handle a key list longer than 1000 objects?

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