Bucket_object boto3 download file

Add a comment. Active Oldest Votes. Are you using Python 2. I'm using 3. I think you should modify [0] with [-1] if you want the latest added file.

MattBunch yes, if the bucket has more than objects, you need to paginate, fetch all objects and then sort. Show 3 more comments. Hence, if you are looking out for the latest updated folder, you could go ahead with latest['Key'].

SaadK SaadK 1, 17 17 silver badges 29 29 bronze badges. Isn't this incorrect? If there is multiple page, this will give the most recent object of the last page since it may be redefined at each iteration. ClientError as e: if e. Ashan Ashan Maybe my question was not clear enough. I just edited it and provided more information. I would like to download the latest file from a bucket that contains a couple of csv files and I want to download always the latest no matter what name it has.

Latest in the sense, not the latest version of a particular file? Collectives on Stack Overflow. Learn more. Boto3 to download all files from a S3 Bucket Ask Question. Asked 6 years, 3 months ago. Active 4 months ago. Viewed k times. I need a similar functionality like aws s3 sync My current code is!

If a folder is present inside the bucket, its throwing an error Traceback most recent call last : File ". How to download folders. John Rotenstein k 17 17 gold badges silver badges bronze badges. Shan Shan 1, 2 2 gold badges 13 13 silver badges 29 29 bronze badges.

See stackoverflow. Add a comment. Active Oldest Votes. I have the same needs and created the following function that download recursively the files. The directories are created locally only if they contain files. Hack-R I don't think you need to create a resource and a client. I believe a client is always available on the resource.

You can just use resource. Thank you glefait and Shan — user Isn't there an equivalent of aws-cli command aws s3 sync available in boto3 library? What is dist here? Show 5 more comments. Grant Langseth Grant Langseth 1, 11 11 silver badges 5 5 bronze badges. Thanks Grant — Shan. If you paste the last response you get from using the boto3 API whatever is stored in the response variable then I think it will be more clear what is happening in your specific case.

Did you check that? Note that you would need minor changes to make it work with Digital Ocean. Show 4 more comments. Joe Haddad 6 6 silver badges 12 12 bronze badges. Tushar Niras Tushar Niras 2, 2 2 gold badges 19 19 silver badges 21 21 bronze badges. Clean and simple, any reason why not to use this? It's much more understandable than all the other solutions.

The following operations are related to GetBucketLifecycleConfiguration :. Specifies the expiration for the lifecycle of the object in the form of date, days and, whether the object has a delete marker. Prefix identifying one or more objects to which the rule applies. This is no longer used; use Filter instead. The Filter is used to identify objects that a Lifecycle Rule applies to. A Filter must have exactly one of Prefix , Tag , or And specified.

Filter is required if the LifecycleRule does not containt a Prefix element. The Lifecycle Rule will apply to any object matching all of the predicates configured inside the And operator. If 'Enabled', the rule is currently being applied. If 'Disabled', the rule is not currently being applied.

Specifies the transition rule for the lifecycle rule that describes when noncurrent objects transition to a specific storage class. If your bucket is versioning-enabled or versioning is suspended , you can set this action to request that Amazon S3 transition noncurrent object versions to a specific storage class at a set period in the object's lifetime.

Returns the Region the bucket resides in. You set the bucket's Region using the LocationConstraint request parameter in a CreateBucket request. For more information, see CreateBucket. To use this API against an access point, provide the alias of the access point in place of the bucket name.

The following operations are related to GetBucketLocation :. Specifies the Region where the bucket resides. Buckets in Region us-east-1 have a LocationConstraint of null. Returns the logging status of a bucket and the permissions users have to view and modify that status. To use GET, you must be the bucket owner. The following operations are related to GetBucketLogging :. Describes where logs are stored and the prefix that Amazon S3 assigns to all log object keys for a bucket.

Specifies the bucket where you want Amazon S3 to store server access logs. You can have your logs delivered to any bucket that you own, including the same bucket that is being logged.

You can also configure multiple buckets to deliver their logs to the same target bucket. In this case, you should choose a different TargetPrefix for each source bucket so that the delivered log files can be distinguished by key.

A prefix for all log object keys. If you store log files from multiple Amazon S3 buckets in a single bucket, you can use a prefix to distinguish which log files came from which bucket. Gets a metrics configuration specified by the metrics configuration ID from the bucket.

To use this operation, you must have permissions to perform the s3:GetMetricsConfiguration action. The following operations are related to GetBucketMetricsConfiguration :.

Specifies a metrics configuration filter. The metrics configuration will only include objects that meet the filter's criteria.

No longer used, see GetBucketNotificationConfiguration. This data type is deprecated. An optional unique identifier for configurations in a notification configuration. If you don't provide one, Amazon S3 will assign an ID. Amazon SNS topic to which Amazon S3 will publish a message to report the specified events for the bucket.

If notifications are not enabled on the bucket, the action returns an empty NotificationConfiguration element. By default, you must be the bucket owner to read the notification configuration of a bucket. However, the bucket owner can use a bucket policy to grant permission to other users to read this configuration with the s3:GetBucketNotification permission.

For more information about setting and reading the notification configuration on a bucket, see Setting Up Notification of Bucket Events. For more information about bucket policies, see Using Bucket Policies. The following action is related to GetBucketNotification :. A container for specifying the notification configuration of the bucket. If this element is empty, notifications are turned off for the bucket.

The Amazon S3 bucket event about which to send notifications. Specifies object key name filtering rules. Specifies the Amazon S3 object key name to filter on and whether to filter on the suffix or prefix of the key name. The object key name prefix or suffix identifying one or more objects to which the filtering rule applies.

The maximum length is 1, characters. Overlapping prefixes and suffixes are not supported. The Amazon Simple Queue Service queues to publish messages to and the events for which to publish messages. The Amazon S3 bucket event for which to invoke the Lambda function.

Retrieves OwnershipControls for an Amazon S3 bucket. To use this operation, you must have the s3:GetBucketOwnershipControls permission. The following operations are related to GetBucketOwnershipControls :. The name of the Amazon S3 bucket whose OwnershipControls you want to retrieve. BucketOwnerPreferred - Objects uploaded to the bucket change ownership to the bucket owner if the objects are uploaded with the bucket-owner-full-control canned ACL.

ObjectWriter - The uploading account will own the object if the object is uploaded with the bucket-owner-full-control canned ACL. Returns the policy of a specified bucket. If you are using an identity other than the root user of the Amazon Web Services account that owns the bucket, the calling identity must have the GetBucketPolicy permissions on the specified bucket and belong to the bucket owner's account in order to use this operation. The following action is related to GetBucketPolicy :.

Retrieves the policy status for an Amazon S3 bucket, indicating whether the bucket is public. In order to use this operation, you must have the s3:GetBucketPolicyStatus permission.

The following operations are related to GetBucketPolicyStatus :. The policy status for this bucket. TRUE indicates that this bucket is public. FALSE indicates that the bucket is not public. It can take a while to propagate the put or delete a replication configuration to all Amazon S3 systems.

Therefore, a get request soon after put or delete can return a wrong result. This action requires permissions for the s3:GetReplicationConfiguration action. If you include the Filter element in a replication configuration, you must also include the DeleteMarkerReplication and Priority elements.

The response also returns those elements. For information about GetBucketReplication errors, see List of replication-related error codes.

The following operations are related to GetBucketReplication :. A container for replication rules. You can add up to 1, rules. The maximum size of a replication configuration is 2 MB. A container for one or more replication rules. A replication configuration must have at least one rule and can contain a maximum of 1, rules. The priority indicates which rule has precedence whenever two or more replication rules conflict. Amazon S3 will attempt to replicate objects according to all replication rules.

However, if there are two or more rules with the same destination bucket, then objects will be replicated according to the rule with the highest priority. The higher the number, the higher the priority. An object key name prefix that identifies the object or objects to which the rule applies. The maximum prefix length is 1, characters. To include all objects in a bucket, specify an empty string. A filter that identifies the subset of objects to which the replication rule applies.

A Filter must specify exactly one Prefix , Tag , or an And child element. A container for specifying rule filters. The filters determine the subset of objects to which the rule applies. This element is required only if you specify more than one filter. A container that describes additional filters for identifying the source objects that you want to replicate. You can choose to enable or disable the replication of these objects. If you include SourceSelectionCriteria in the replication configuration, this element is required.

A filter that you can specify for selections for modifications on replicas. Amazon S3 doesn't replicate replica modifications by default. In the latest version of replication configuration when Filter is specified , you can specify this element and set the status to Enabled to replicate modifications on replicas. If you don't specify the Filter element, Amazon S3 assumes that the replication configuration is the earlier version, V1.

In the earlier version, this element is not allowed. Destination bucket owner account ID. In a cross-account scenario, if you direct Amazon S3 to change replica ownership to the Amazon Web Services account that owns the destination bucket by specifying the AccessControlTranslation property, this is the account ID of the destination bucket owner.

The storage class to use when replicating objects, such as S3 Standard or reduced redundancy. By default, Amazon S3 uses the storage class of the source object to create the object replica. Specify this only in a cross-account scenario where source and destination bucket owners are not the same , and you want to change replica ownership to the Amazon Web Services account that owns the destination bucket.

If this is not specified in the replication configuration, the replicas are owned by same Amazon Web Services account that owns the source object. Specifies the replica ownership. A container that provides information about encryption. If SourceSelectionCriteria is specified, you must specify this element. Amazon S3 uses this key to encrypt replica objects. Amazon S3 only supports symmetric, customer managed KMS keys. Must be specified together with a Metrics block. A container specifying the time by which replication should be complete for all objects and operations on objects.

A container specifying replication metrics-related settings enabling replication metrics and events. A container specifying the time threshold for emitting the s3:Replication:OperationMissedThreshold event. Specifies whether Amazon S3 replicates delete markers. If you specify a Filter in your replication configuration, you must also include a DeleteMarkerReplication element. If your Filter includes a Tag element, the DeleteMarkerReplication Status must be set to Disabled, because Amazon S3 does not support replicating delete markers for tag-based rules.

For an example configuration, see Basic Rule Configuration. For more information about delete marker replication, see Basic Rule Configuration.

If you are using an earlier version of the replication configuration, Amazon S3 handles replication of delete markers differently. For more information, see Backward Compatibility. Returns the request payment configuration of a bucket.

To use this version of the operation, you must be the bucket owner. For more information, see Requester Pays Buckets. The following operations are related to GetBucketRequestPayment :. To use this operation, you must have permission to perform the s3:GetBucketTagging action. The following operations are related to GetBucketTagging :. This implementation also returns the MFA Delete status of the versioning state.

If the MFA Delete status is enabled , the bucket owner must use an authentication device to change the versioning state of the bucket. The following operations are related to GetBucketVersioning :.

Specifies whether MFA delete is enabled in the bucket versioning configuration. This element is only returned if the bucket has been configured with MFA delete. If the bucket has never been so configured, this element is not returned. Returns the website configuration for a bucket. To host website on Amazon S3, you can configure a bucket as website by adding a website configuration.

By default, only the bucket owner can read the bucket website configuration. However, bucket owners can allow other users to read the website configuration by writing a bucket policy granting them the S3:GetBucketWebsite permission. Protocol to use when redirecting requests. The default is the protocol that is used in the original request. The name of the index document for the website for example index. A suffix that is appended to a request that is for a directory on the website endpoint for example,if the suffix is index.

Specifies the redirect behavior and when a redirect is applied. For more information about routing rules, see Configuring advanced conditional redirects in the Amazon S3 User Guide. A container for describing a condition that must be met for the specified redirect to apply.

For example, 1. If request results in HTTP error 4xx, redirect request to another host where you might process the error. The HTTP error code when the redirect is applied. In the event of an error, if the error code equals this value, then the specified redirect is applied. Required when parent element Condition is specified and sibling KeyPrefixEquals is not specified. If both are specified, then both must be true for the redirect to be applied. The object key name prefix when the redirect is applied.

For example, to redirect requests for ExamplePage. If both conditions are specified, both must be true for the redirect to be applied. Container for redirect information. You can redirect requests to another host, to another page, or with another protocol.

In the event of an error, you can specify a different error code to return. The object key prefix to use in the redirect request. Not required if one of the siblings is present. Can be present only if ReplaceKeyWith is not provided. The specific object key to use in the redirect request. For example, redirect request to error. Can be present only if ReplaceKeyPrefixWith is not provided. Retrieves objects from Amazon S3. If you grant READ access to the anonymous user, you can return the object without using an authorization header.

An Amazon S3 bucket has no directory hierarchy such as you would find in a typical computer file system. You can, however, create a logical hierarchy by using object key names that imply a folder structure. For example, instead of naming an object sample. To get an object from such a logical hierarchy, specify the full key name for the object in the GET operation. To distribute large files to many people, you can save bandwidth costs by using BitTorrent. For more information, see Amazon S3 Torrent.

Otherwise, this action returns an InvalidObjectStateError error. For information about restoring archived objects, see Restoring Archived Objects. If you encrypt an object by using server-side encryption with customer-provided encryption keys SSE-C when you store the object in Amazon S3, then when you GET the object, you must use the following headers:.

Assuming you have the relevant permission to read object tags, the response also returns the x-amz-tagging-count header that provides the count of number of tags associated with the object.

You can use GetObjectTagging to retrieve the tag set associated with an object. You need the relevant read object or version permission for this operation.

For more information, see Specifying Permissions in a Policy. If the object you request does not exist, the error Amazon S3 returns depends on whether you also have the s3:ListBucket permission. By default, the GET action returns the current version of an object. To return a different version, use the versionId subresource.

For more information about versioning, see PutBucketVersioning. There are times when you want to override certain response header values in a GET response. You can override values for a set of response headers using the following query parameters. These response header values are sent only on a successful request, that is, when status code OK is returned.

The set of headers you can override using these parameters is a subset of the headers that Amazon S3 accepts when you create an object. To override these header values in the GET response, you use the following request parameters.

You must sign the request, either using an Authorization header or a presigned URL, when using these parameters. They cannot be used with an unsigned anonymous request.

If both of the If-Match and If-Unmodified-Since headers are present in the request as follows: If-Match condition evaluates to true , and; If-Unmodified-Since condition evaluates to false ; then, S3 returns OK and the data requested. For more information about conditional requests, see RFC The following operations are related to GetObject :. Downloads the specified range bytes of an object.

Amazon S3 doesn't support retrieving multiple ranges of data per GET request. Body StreamingBody Specifies whether the object retrieved was true or was not false a Delete Marker. If false, this response header does not appear in the response. If the object expiration is configured see PUT Bucket lifecycle , the response includes this header. It includes the expiry-date and rule-id key-value pairs providing object expiration information.

The value of the rule-id is URL encoded. Provides information about object restoration action and expiration time of the restored object copy. An ETag is an opaque identifier assigned by a web server to a specific version of a resource found at a URL.

This is set to the number of metadata entries not returned in x-amz-meta headers. Specifies what content encodings have been applied to the object and thus what decoding mechanisms must be applied to obtain the media-type referenced by the Content-Type header field. If the bucket is configured as a website, redirects requests for this object to another object in the same bucket or to an external URL.

Amazon S3 stores the value of this header in the object metadata. Provides storage class information of the object. Amazon S3 returns this header for all objects except for S3 Standard storage class objects.

Amazon S3 can return this if your request involves a bucket that is either a source or destination in a replication rule. Indicates whether this object has an active legal hold. This field is only returned if you have permission to view an object's legal hold status.

The following example retrieves an object for an S3 bucket. The request specifies the range header to retrieve a specific byte range.

Returns the access control list ACL of an object. To return ACL information about a different version, use the versionId subresource. The following operations are related to GetObjectAcl :. Gets an object's current Legal Hold status. For more information, see Locking Objects. Gets the Object Lock configuration for a bucket.

The rule specified in the Object Lock configuration will be applied by default to every new object placed in the specified bucket. Indicates whether this bucket has an Object Lock configuration enabled. Specifies the Object Lock rule for the specified object. Enable the this rule when you apply ObjectLockConfiguration to a bucket. Bucket settings require both a mode and a period. The period can be either Days or Years but you must select one.

You cannot specify Days and Years at the same time. The default Object Lock retention mode and period that you want to apply to new objects placed in the specified bucket. The default Object Lock retention mode you want to apply to new objects placed in the specified bucket. Must be used with either Days or Years.

The number of days that you want to specify for the default retention period. Must be used with Mode. The number of years that you want to specify for the default retention period. Retrieves an object's retention settings. Returns the tag-set of an object.

You send the GET request against the tagging subresource associated with the object. To use this operation, you must have permission to perform the s3:GetObjectTagging action. By default, the GET action returns information about current version of an object. Boto3 looks at various configuration locations until it finds the configuration values such as settings. If you do not want to create a session and access the resource, you can create an s3 client directly by using the following command.

Use the below script to download a single file from S3 using Boto3 Resource. Create necessary sub directories to avoid file replacements if there are one or more files existing in different sub buckets.

Then download the file actually. You cannot download folder from S3 using Boto3 using a clean implementation. Instead you can download all files from a directory using the previous section.