Traceback (most recent call last):
  File "./upstream", line 223, in ?
    main()
  File "./upstream", line 39, in main
    d = dialog.Dialog(dialog="dialog")
  File "/Users/indranil/Sites/upstream/upstream/trunk/upstream-base/dialog.py", line 589, in __init__
    self._dialog_prg = _path_to_executable(dialog)
  File "/Users/indranil/Sites/upstream/upstream/trunk/upstream-base/dialog.py", line 313, in _path_to_executable
    raise ExecutableNotFound(
dialog.ExecutableNotFound: <ExecutableNotFound: can't find the executable for the dialog-like program>