s3.py 文件源码

def is_available():
    '''
    Check ability to access S3 bucket.
    '''
    s3_client = boto3.client('s3')
    try:
        kwargs = {'Bucket': TS_AWS_S3_BUCKET}
        if TS_AWS_S3_PREFIX:
            kwargs['Prefix'] = TS_AWS_S3_PREFIX
        s3_client.list_objects(**kwargs)
    except ClientError as e:
        exc_info = sys.exc_info()
        if sys.version_info >= (3,0,0):
            raise S3ClientError(e).with_traceback(exc_info[2])
        else:
            six.reraise(S3ClientError, S3ClientError(e), exc_info[2])
    except RequestException as e:
        exc_info = sys.exc_info()
        if sys.version_info >= (3,0,0):
            raise S3ClientError('Failure to communicate with S3').with_traceback(exc_info[2])
        else:
            six.reraise(S3ClientError, S3ClientError('Failure to communicate with S3'), exc_info[2])

    return True