>>> guiexist('*Minefield')
0
>>> getobjectlist('*-Minefield')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.5/site-packages/ldtp.py", line 3476, in getobjectlist
    raise LdtpExecutionError (str (msg))
ldtp.LdtpExecutionError: "u'getobjectlist failed: Window does not exist'"