check if a key exists in a bucket in s3 using boto3

Question

I would like to know if a key exists in boto3. I can loop the bucket contents and check the key if it matches.

But that seems longer and an overkill. Boto3 official

Answer 1

You can use S3Fs, which is essentially a wrapper around boto3 that exposes typical file-system style operations:

import s3fs
s3 = s3fs.S3FileSystem()
s3.exists('myfile.txt')