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happens when Xend crashes, so retrying once allows it to restart and recover. If we see Xend crash twice, we give up, but throw a more polite exception than the BadStatusLine splat that we got previously. Signed-off-by: Ewan Mellor <ewan@xensource.com>
The file test.py here is from the Zope project, and is Copyright (c) 2001, 2002 Zope Corporation and Contributors. This file is released under the Zope Public License, version 2.0, a copy of which is in the file ZPL-2.0.