How to capture botocore's NoSuchKey exception?

Question

I\'m trying to write \"good\" python and capture a S3 no such key error with this:

session = botocore.session.get_session()
client = session.create_client(\'s3\'         


        

Answer 1

I think the most elegant way to do this is in Boto3 is

session = botocore.session.get_session()
client = session.create_client('s3')

try:
    client.get_object(Bucket=BUCKET, Key=FILE)
except client.exceptions.NoSuchKey:
    print("no such key in bucket")

The documentation on error handling seems sparse, but the following prints the error codes this works for:

session = botocore.session.get_session()
client = session.create_client('s3')
try:
    try:
        client.get_object(Bucket=BUCKET, Key=FILE)
    except client.exceptions.InvalidBucketName:
        print("no such key in bucket")
except AttributeError as err:
    print(err)

< botocore.errorfactory.S3Exceptions object at 0x105e08c50 > object has no attribute 'InvalidBucketName'. Valid exceptions are: BucketAlreadyExists, BucketAlreadyOwnedByYou, NoSuchBucket, NoSuchKey, NoSuchUpload, ObjectAlreadyInActiveTierError, ObjectNotInActiveTierError