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imported after the start of the test run, excluding modules that match
testMatch. If you want to include those modules too, use the ``--cover-tests``
switch, or set the NOSE_COVER_TESTS environment variable to a true value. To
restrict the coverage report to modules from a particular package or packages,
use the ``--cover-package`` switch or the NOSE_COVER_PACKAGE environment
variable.

.. _coverage: http://www.nedbatchelder.com/code/modules/coverage.html
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