Hudson build failed using Python & Coverage

I completed this tutorial from Joe Heck to set up Hudson for Python. Everything worked perfectly except the Coverage section. My build failed with this output:

[workspace] $ /bin/sh -xe /tmp/hudson6222564272447222496.sh
+ coverage run tests/run.py --with-xunit
You must specify at least one of -e, -x, -c, -r, or -a.

I tried to include the Execute argument, -x, but got an exception that was ultimate开发者_如何学JAVAly caused by a permissions failure:

IOError: [Errno 13] Permission denied: 'nosetests.xml'

Has anyone gotten Coverage working successfully with Hudson?

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You have an old version of coverage.py, it looks like 2.x of some sort. "coverage run" is new syntax with coverage.py 3.x. Download the latest coverage.py at http://pypi.python.org/pypi/coverage, and you should be good to go.