Support for object level Tagging in boto3 upload_file method

I want to add tags to the files as I upload them to S3. Boto3 supports specifying tags with put_object method, however considering expected file size, I am using upload_file function which handles multipart uploads. But this function rejects ‘Tagging’ as keyword argument.

import boto3
client = boto3.client('s3', region_name='us-west-2')
client.upload_file('test.mp4', 'bucket_name', 'test.mp4',
                   ExtraArgs={'Tagging': 'type=test'})

ValueError: Invalid extra_args key 'Tagging', must be one of: ACL, CacheControl, ContentDisposition, ContentEncoding, ContentLanguage, ContentType, Expires, GrantFullControl, GrantRead, GrantReadACP, GrantWriteACP, Metadata, RequestPayer, ServerSideEncryption, StorageClass, SSECustomerAlgorithm, SSECustomerKey, SSECustomerKeyMD5, SSEKMSKeyId, WebsiteRedirectLocation

I found a way to make this work by using S3 transfer manager directly and modifying allowed keyword list.

from s3transfer import S3Transfer
import boto3

client = boto3.client('s3', region_name='us-west-2')
transfer = S3Transfer(client)
transfer.ALLOWED_UPLOAD_ARGS.append('Tagging')
transfer.upload_file('test.mp4', 'bucket_name', 'test.mp4',
                     extra_args={'Tagging': 'type=test'})

Even though this works, I don’t think this is the best way. It might create other side effects. Currently I am not able to find correct way to achieve this. Any advice would be great. Thanks.

[drake-adl]

We utilize def convert_dict_to_string(tagging): return "&".join([k + "=" + v for k, v in tagging.items()]). The input param is a dictionary.

You can use: s3.put_object_tagging or s3.put_object with a Tagging arg.

[smithericsmith]

This would be very helpful for me as well. I avoid using the upload_file() call because it does not support Tagging, so I am forced to read the contents into memory and use put_object() simply because I want to have the files Tagged when created.