S3cmd:  0.9.8.3
Python: 2.5 (r25:51908, Nov  6 2007, 16:54:01)  [GCC 4.1.2 20070925 (Red Hat 4.1.2-27)]

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 266, in cmd_object_del
    uri = S3Uri(uri_arg)
  File "/usr/lib/python2.5/site-packages/S3/S3Uri.py", line 31, in __new__
    raise ValueError("%s: not a recognized URI" % string)
ValueError: s3://foobucket/filenamefoo: not a recognized URI