This scripts provides a list of multiparts in it

list_multiparts.py

import boto3
def get_multipart_upload(bucket):
    client = boto3.client('s3')
    response_multipart = client.list_multipart_uploads(Bucket=bucket)
    # print(response_multipart)
    multiparts = []
    if "Uploads" in response_multipart.keys():
        multiparts = response_multipart["Uploads"]
    return multiparts
def main():
    print(get_multipart_upload('complianx-xxdbox'))
if __name__ == "__main__":
    main()