Using gzip.GzipFile seems to result in varying output content for the same input. Because the only (somewhat) effective mechanism available for evaluating whether a given S3 content object version has the desired content is consulting the ETag -- which is the MD5 of the uploaded (in this case, gzipped) content -- getting varying output from the gzipping process for the same input defeats the time- and space-folding intent.
Using
gzip.GzipFileseems to result in varying output content for the same input. Because the only (somewhat) effective mechanism available for evaluating whether a given S3 content object version has the desired content is consulting the ETag -- which is the MD5 of the uploaded (in this case, gzipped) content -- getting varying output from the gzipping process for the same input defeats the time- and space-folding intent.