copy_object(**kwargs)¶Creates a copy of an object that is already stored in Amazon S3.
Note
You can store individual objects of up to 5 TB in Amazon S3. You create a copy of your object up to 5 GB in size in a single atomic action using this API. However, to copy an object greater than 5 GB, you must use the multipart upload Upload Part - Copy (UploadPartCopy) API. For more information, see Copy Object Using the REST Multipart Upload API.
All copy requests must be authenticated. Additionally, you must have read access to the source object and write access to the destination bucket. For more information, see REST Authentication. Both the Region that you want to copy the object from and the Region that you want to copy the object to must be enabled for your account.
A copy request might return an error when Amazon S3 receives the copy request or while Amazon S3 is copying the files. If the error occurs before the copy action starts, you receive a standard Amazon S3 error. If the error occurs during the copy operation, the error response is embedded in the 200 OK response. This means that a 200 OK response can contain either a success or an error. Design your application to parse the contents of the response and handle it appropriately.
If the copy is successful, you receive a response with information about the copied object.
Note
If the request is an HTTP 1.1 request, the response is chunk encoded. If it were not, it would not contain the content-length, and you would need to read the entire body.
The copy request charge is based on the storage class and Region that you specify for the destination object. For pricing information, see Amazon S3 pricing.
Warning
Amazon S3 transfer acceleration does not support cross-Region copies. If you request a cross-Region copy using a transfer acceleration endpoint, you get a 400Bad Requesterror. For more information, see Transfer Acceleration.
Metadata
When copying an object, you can preserve all metadata (default) or specify new metadata. However, the ACL is not preserved and is set to private for the user making the request. To override the default ACL setting, specify a new ACL when generating a copy request. For more information, see Using ACLs.
To specify whether you want the object metadata copied from the source object or replaced with metadata provided in the request, you can optionally add the x-amz-metadata-directive header. When you grant permissions, you can use the s3:x-amz-metadata-directive condition key to enforce certain metadata behavior when objects are uploaded. For more information, see Specifying Conditions in a Policy in the Amazon S3 User Guide . For a complete list of Amazon S3-specific condition keys, see Actions, Resources, and Condition Keys for Amazon S3.
x-amz-copy-source-if Headers
To only copy an object under certain conditions, such as whether the Etag matches or whether the object was modified before or after a specified date, use the following request parameters:
x-amz-copy-source-if-matchx-amz-copy-source-if-none-matchx-amz-copy-source-if-unmodified-sincex-amz-copy-source-if-modified-sinceIf both the x-amz-copy-source-if-match and x-amz-copy-source-if-unmodified-since headers are present in the request and evaluate as follows, Amazon S3 returns 200 OK and copies the data:
x-amz-copy-source-if-match condition evaluates to truex-amz-copy-source-if-unmodified-since condition evaluates to falseIf both the x-amz-copy-source-if-none-match and x-amz-copy-source-if-modified-since headers are present in the request and evaluate as follows, Amazon S3 returns the 412 Precondition Failed response code:
x-amz-copy-source-if-none-match condition evaluates to falsex-amz-copy-source-if-modified-since condition evaluates to trueNote
All headers with thex-amz-prefix, includingx-amz-copy-source, must be signed.
Server-side encryption
When you perform a CopyObject operation, you can optionally use the appropriate encryption-related headers to encrypt the object using server-side encryption with Amazon Web Services managed encryption keys (SSE-S3 or SSE-KMS) or a customer-provided encryption key. With server-side encryption, Amazon S3 encrypts your data as it writes it to disks in its data centers and decrypts the data when you access it. For more information about server-side encryption, see Using Server-Side Encryption.
If a target object uses SSE-KMS, you can enable an S3 Bucket Key for the object. For more information, see Amazon S3 Bucket Keys in the Amazon S3 User Guide .
Access Control List (ACL)-Specific Request Headers
When copying an object, you can optionally use headers to grant ACL-based permissions. By default, all objects are private. Only the owner has full access control. When adding a new object, you can grant permissions to individual Amazon Web Services accounts or to predefined groups defined by Amazon S3. These permissions are then added to the ACL on the object. For more information, see Access Control List (ACL) Overview and Managing ACLs Using the REST API.
If the bucket that you're copying objects to uses the bucket owner enforced setting for S3 Object Ownership, ACLs are disabled and no longer affect permissions. Buckets that use this setting only accept PUT requests that don't specify an ACL or PUT requests that specify bucket owner full control ACLs, such as the bucket-owner-full-control canned ACL or an equivalent form of this ACL expressed in the XML format.
For more information, see Controlling ownership of objects and disabling ACLs in the Amazon S3 User Guide .
Note
If your bucket uses the bucket owner enforced setting for Object Ownership, all objects written to the bucket by any account will be owned by the bucket owner.
Checksums
When copying an object, if it has a checksum, that checksum will be copied to the new object by default. When you copy the object over, you may optionally specify a different checksum algorithm to use with the x-amz-checksum-algorithm header.
Storage Class Options
You can use the CopyObject action to change the storage class of an object that is already stored in Amazon S3 using the StorageClass parameter. For more information, see Storage Classes in the Amazon S3 User Guide .
Versioning
By default, x-amz-copy-source identifies the current version of an object to copy. If the current version is a delete marker, Amazon S3 behaves as if the object was deleted. To copy a different version, use the versionId subresource.
If you enable versioning on the target bucket, Amazon S3 generates a unique version ID for the object being copied. This version ID is different from the version ID of the source object. Amazon S3 returns the version ID of the copied object in the x-amz-version-id response header in the response.
If you do not enable versioning or suspend it on the target bucket, the version ID that Amazon S3 generates is always null.
If the source object's storage class is GLACIER, you must restore a copy of this object before you can use it as a source object for the copy operation. For more information, see RestoreObject.
The following operations are related to CopyObject :
For more information, see Copying Objects.
See also: AWS API Documentation
Request Syntax
response = client.copy_object(
ACL='private'|'public-read'|'public-read-write'|'authenticated-read'|'aws-exec-read'|'bucket-owner-read'|'bucket-owner-full-control',
Bucket='string',
CacheControl='string',
ChecksumAlgorithm='CRC32'|'CRC32C'|'SHA1'|'SHA256',
ContentDisposition='string',
ContentEncoding='string',
ContentLanguage='string',
ContentType='string',
CopySource='string' or {'Bucket': 'string', 'Key': 'string', 'VersionId': 'string'},
CopySourceIfMatch='string',
CopySourceIfModifiedSince=datetime(2015, 1, 1),
CopySourceIfNoneMatch='string',
CopySourceIfUnmodifiedSince=datetime(2015, 1, 1),
Expires=datetime(2015, 1, 1),
GrantFullControl='string',
GrantRead='string',
GrantReadACP='string',
GrantWriteACP='string',
Key='string',
Metadata={
'string': 'string'
},
MetadataDirective='COPY'|'REPLACE',
TaggingDirective='COPY'|'REPLACE',
ServerSideEncryption='AES256'|'aws:kms',
StorageClass='STANDARD'|'REDUCED_REDUNDANCY'|'STANDARD_IA'|'ONEZONE_IA'|'INTELLIGENT_TIERING'|'GLACIER'|'DEEP_ARCHIVE'|'OUTPOSTS'|'GLACIER_IR',
WebsiteRedirectLocation='string',
SSECustomerAlgorithm='string',
SSECustomerKey='string',
SSEKMSKeyId='string',
SSEKMSEncryptionContext='string',
BucketKeyEnabled=True|False,
CopySourceSSECustomerAlgorithm='string',
CopySourceSSECustomerKey='string',
RequestPayer='requester',
Tagging='string',
ObjectLockMode='GOVERNANCE'|'COMPLIANCE',
ObjectLockRetainUntilDate=datetime(2015, 1, 1),
ObjectLockLegalHoldStatus='ON'|'OFF',
ExpectedBucketOwner='string',
ExpectedSourceBucketOwner='string'
)
The canned ACL to apply to the object.
This action is not supported by Amazon S3 on Outposts.
[REQUIRED]
The name of the destination bucket.
When using this action with an access point, you must direct requests to the access point hostname. The access point hostname takes the form AccessPointName -AccountId .s3-accesspoint.*Region* .amazonaws.com. When using this action with an access point through the Amazon Web Services SDKs, you provide the access point ARN in place of the bucket name. For more information about access point ARNs, see Using access points in the Amazon S3 User Guide .
When using this action with Amazon S3 on Outposts, you must direct requests to the S3 on Outposts hostname. The S3 on Outposts hostname takes the form AccessPointName-AccountId.outpostID.s3-outposts.Region.amazonaws.com . When using this action with S3 on Outposts through the Amazon Web Services SDKs, you provide the Outposts bucket ARN in place of the bucket name. For more information about S3 on Outposts ARNs, see Using Amazon S3 on Outposts in the Amazon S3 User Guide .
Bucket key in the copy source dictionary. If you want to provide the copy source for an S3 access point as a string instead of a dictionary, the ARN provided must be the full S3 access point object ARN (i.e. {accesspoint_arn}/object/{key})Gives the grantee READ, READ_ACP, and WRITE_ACP permissions on the object.
This action is not supported by Amazon S3 on Outposts.
Allows grantee to read the object data and its metadata.
This action is not supported by Amazon S3 on Outposts.
Allows grantee to read the object ACL.
This action is not supported by Amazon S3 on Outposts.
Allows grantee to write the ACL for the applicable object.
This action is not supported by Amazon S3 on Outposts.
[REQUIRED]
The key of the destination object.
A map of metadata to store with the object in S3.
x-amz-server-side-encryption-customer-algorithm header.Specifies the 128-bit MD5 digest of the encryption key according to RFC 1321. Amazon S3 uses this header for a message integrity check to ensure that the encryption key was transmitted without error.
Please note that this parameter is automatically populated if it is not provided. Including this parameter is not required
Specifies whether Amazon S3 should use an S3 Bucket Key for object encryption with server-side encryption using AWS KMS (SSE-KMS). Setting this header to true causes Amazon S3 to use an S3 Bucket Key for object encryption with SSE-KMS.
Specifying this header with a COPY action doesn’t affect bucket-level settings for S3 Bucket Key.
Specifies the 128-bit MD5 digest of the encryption key according to RFC 1321. Amazon S3 uses this header for a message integrity check to ensure that the encryption key was transmitted without error.
Please note that this parameter is automatically populated if it is not provided. Including this parameter is not required
TaggingDirective . The tag-set must be encoded as URL Query parameters.403 Forbidden (access denied).403 Forbidden (access denied).dict
Response Syntax
{
'CopyObjectResult': {
'ETag': 'string',
'LastModified': datetime(2015, 1, 1),
'ChecksumCRC32': 'string',
'ChecksumCRC32C': 'string',
'ChecksumSHA1': 'string',
'ChecksumSHA256': 'string'
},
'Expiration': 'string',
'CopySourceVersionId': 'string',
'VersionId': 'string',
'ServerSideEncryption': 'AES256'|'aws:kms',
'SSECustomerAlgorithm': 'string',
'SSECustomerKeyMD5': 'string',
'SSEKMSKeyId': 'string',
'SSEKMSEncryptionContext': 'string',
'BucketKeyEnabled': True|False,
'RequestCharged': 'requester'
}
Response Structure
(dict) --
CopyObjectResult (dict) --
Container for all response elements.
ETag (string) --
Returns the ETag of the new object. The ETag reflects only changes to the contents of an object, not its metadata.
LastModified (datetime) --
Creation date of the object.
ChecksumCRC32 (string) --
The base64-encoded, 32-bit CRC32 checksum of the object. This will only be present if it was uploaded with the object. With multipart uploads, this may not be a checksum value of the object. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide .
ChecksumCRC32C (string) --
The base64-encoded, 32-bit CRC32C checksum of the object. This will only be present if it was uploaded with the object. With multipart uploads, this may not be a checksum value of the object. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide .
ChecksumSHA1 (string) --
The base64-encoded, 160-bit SHA-1 digest of the object. This will only be present if it was uploaded with the object. With multipart uploads, this may not be a checksum value of the object. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide .
ChecksumSHA256 (string) --
The base64-encoded, 256-bit SHA-256 digest of the object. This will only be present if it was uploaded with the object. With multipart uploads, this may not be a checksum value of the object. For more information about how checksums are calculated with multipart uploads, see Checking object integrity in the Amazon S3 User Guide .
Expiration (string) --
If the object expiration is configured, the response includes this header.
CopySourceVersionId (string) --
Version of the copied object in the destination bucket.
VersionId (string) --
Version ID of the newly created copy.
ServerSideEncryption (string) --
The server-side encryption algorithm used when storing this object in Amazon S3 (for example, AES256, aws:kms).
SSECustomerAlgorithm (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header confirming the encryption algorithm used.
SSECustomerKeyMD5 (string) --
If server-side encryption with a customer-provided encryption key was requested, the response will include this header to provide round-trip message integrity verification of the customer-provided encryption key.
SSEKMSKeyId (string) --
If present, specifies the ID of the Amazon Web Services Key Management Service (Amazon Web Services KMS) symmetric customer managed key that was used for the object.
SSEKMSEncryptionContext (string) --
If present, specifies the Amazon Web Services KMS Encryption Context to use for object encryption. The value of this header is a base64-encoded UTF-8 string holding JSON with the encryption context key-value pairs.
BucketKeyEnabled (boolean) --
Indicates whether the copied object uses an S3 Bucket Key for server-side encryption with Amazon Web Services KMS (SSE-KMS).
RequestCharged (string) --
If present, indicates that the requester was successfully charged for the request.
Exceptions
S3.Client.exceptions.ObjectNotInActiveTierErrorExamples
The following example copies an object from one bucket to another.
response = client.copy_object(
Bucket='destinationbucket',
CopySource='/sourcebucket/HappyFacejpg',
Key='HappyFaceCopyjpg',
)
print(response)
Expected Output:
{
'CopyObjectResult': {
'ETag': '"6805f2cfc46c0f04559748bb039d69ae"',
'LastModified': datetime(2016, 12, 15, 17, 38, 53, 3, 350, 0),
},
'ResponseMetadata': {
'...': '...',
},
}