S3cmd:  0.9.8.3
Python: 2.5.1 (r251:54863, May 18 2007, 16:56:43)  [GCC 3.4.4 (cygming special, gdc 0.12, using dmd 0.125)]

Traceback (most recent call last):
  File "/usr/bin/s3cmd", line 1040, in <module>
    main()
  File "/usr/bin/s3cmd", line 1020, in main
    cmd_func(args)
  File "/usr/bin/s3cmd", line 188, in cmd_object_put
    response = s3.object_put_uri(real_filename, uri_final, extra_headers)
  File "/usr/lib/python2.5/site-packages/S3/S3.py", line 195, in object_put_uri
    return self.object_put(filename, uri.bucket(), uri.object(), extra_headers)
  File "/usr/lib/python2.5/site-packages/S3/S3.py", line 175, in object_put
    response = self.send_file(request, file)
  File "/usr/lib/python2.5/site-packages/S3/S3.py", line 373, in send_file
    response["speed"] = float(response["size"]) / response["elapsed"]
ZeroDivisionError: float division