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¿Cómo capturar la excepción NoSuchKey de botocore?

Estoy tratando de escribir Python "bueno" y capturar un S3 sin ese error clave con esto:

 session = botocore.session.get_session() client = session.create_client('s3') try: client.get_object(Bucket=BUCKET, Key=FILE) except NoSuchKey as e: print >> sys.stderr, "no such key in bucket"

Pero NoSuchKey no está definido y no puedo rastrearlo hasta la importación que necesito para definirlo.

e.__class__ es botocore.errorfactory.NoSuchKey pero from botocore.errorfactory import NoSuchKey da error y from botocore.errorfactory import * tampoco funciona y no quiero capturar un error genérico.

over 4 years ago · Santiago Trujillo
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from botocore.exceptions import ClientError try: response = self.client.get_object(Bucket=bucket, Key=key) return json.loads(response["Body"].read()) except ClientError as ex: if ex.response['Error']['Code'] == 'NoSuchKey': logger.info('No object found - returning empty') return dict() else: raise
over 4 years ago · Santiago Trujillo Report

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Usando botocore 1.5, parece que el identificador del cliente expone las clases de excepción:

 session = botocore.session.get_session() client = session.create_client('s3') try: client.get_object(Bucket=BUCKET, Key=FILE) except client.exceptions.NoSuchKey as e: print >> sys.stderr, "no such key in bucket"
over 4 years ago · Santiago Trujillo Report

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En boto3, pude acceder a la excepción en el metacliente del recurso.

 import boto3 s3 = boto3.resource('s3') s3_object = s3.Object(bucket_name, key) try: content = s3_object.get()['Body'].read().decode('utf-8') except s3.meta.client.exceptions.NoSuchKey: print("no such key in bucket")
over 4 years ago · Santiago Trujillo Report
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