title: How to Upload/download to S3 without changing Last Modified date?
body: <p>I want to upload and download files to S3 using boto3 without changing their "LastModified" date so I can keep tabs on the age of the contents. Whenever I upload or download a file it takes on the date of this operation and I lose the date that the contents were modified. </p>
  
  <p>I'm looking at the timestamp of the files using</p>
  
  <pre><code>fileObj.get('LastModified')
  </code></pre>
  
  <p>where the fileObj is taken from a paginator result. I'm using the following command to upload </p>
  
  <pre><code>s3Client.upload_fileobj(data, bucket_name, destpath)
  </code></pre>
  
  <p>and the following to download the files:</p>
  
  <pre><code>s3Client.download_file(bucket_name, key, localPath)
  </code></pre>
  
  <p>How can I stop the last modified date changing?</p>