I try to use s3cmd-1.5.2 on Mac OS X 10.8.
The initial sync works fine.
The second generate errors ERROR: S3 error: None and keep re uploading most files...
In debug I see that when s3cmd is doing
DEBUG: Sending request method_string='PUT', .....
It generate an InvalidRequest and
DEBUG: ConnMan.put(): connection put back to pool
ERROR: S3 error: None
WARNING: Unable to remote copy files ...
Any idea what is wrong ?