hi,
I'm new to python as well as pywin. I'm having trouble with the
following code:
_ListenerBase = win32com.client.getevents("SAPI.SpSharedRecoContext")
class _ListenerCallback(_ListenerBase):
"""Created to fire events upon speech recognition. Instances of this
class automatically die when their listener loses a reference to
its grammar. TODO: we may need to call self.close() to release the
COM object, and we should probably make goaway() a method of self
instead of letting people do it for us.
"""
def __init__(self, oobj, listener, callback):
_ListenerBase.__init__(self, oobj)
self._listener = listener
self._callback = callback
def OnRecognition(self, _1, _2, _3, Result):
# When our listener stops listening, it's supposed to kill this
# object. But COM can be funky, and we may have to call close()
# before the object will die.
if self._listener and not self._listener.islistening():
self.close()
self._listener = None
if self._callback and self._listener:
newResult = win32com.client.Dispatch(Result)
phrase = newResult.PhraseInfo.GetText()
self._callback(phrase, self._listener)
The error I get is:
class _ListenerCallback(_ListenerBase):
TypeError: Error when calling the metaclass bases
cannot create 'NoneType' instances
I went through the list archives and found a couple of messages
regarding this, so I tried the following in an interactive shell:
>>> lb = win32com.client.getevents("SAPI.SpSharedRecoContext")
>>> type(lb)
<type 'NoneType'>
Can anyone point me in the right direction? Why is getevents returning a
NoneType? How can I fix it?
Thanks,
Arun
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