2010/12/13 Osier Yang <jyang@redhat.com>:

于 2010年12月13日 13:43, Albert Hopkins 写道:

...

I'm writing an app and using the Python bindings for libvirt.

Everything is fine but, in some cases I need to call lookupByName(). There are a lot of times when the name will not exist, I trap the exception, however I still get this message printed to stderr:

libvir: QEMU error : Domain not found: no domain with matching name 'foo'

Is there any way to turn this off?  This is a command-line program so the extra output makes the interface confusing.

I've tried re-assigning sys.stderr before calling lookupByName(), but that doesn't seem to have any affect.

actually there is a bug for this problem, it should be warning, but not error, and will be fixed upstream soon.

- Osier

Really? Why should this be a warning? When virDomainLookupByName() fails because there is no domain with the given name then we need to report an error. I don't see what could be changed there. Albert, libvirt's default error handler prints to stderr, you can override it like this: import libvirt def errorHandler(ctx, err): pass libvirt.registerErrorHandler(errorHandler, None) Matthias

On Mon, 2010-12-13 at 08:47 +0100, Matthias Bolte wrote:

Albert, libvirt's default error handler prints to stderr, you can override it like this:

import libvirt

def errorHandler(ctx, err): pass

libvirt.registerErrorHandler(errorHandler, None)

Matthias

Oh, thanks (now I that I know where to look i see it in the docs). Thanks again, -albert