--- a/debian/rules	2020-11-08 12:26:02.685952055 +0000
--- b/debian/rules	2020-11-08 12:30:19.221524553 +0000
@@ -10,6 +10,7 @@
 export examplepkg=python-$(PYBUILD_NAME)-examples
 export PYBUILD_AFTER_INSTALL_python3=dh_numpy3
 export PYBUILD_BEFORE_TEST=cp -r {dir}/examples {build_dir}
+export PYBUILD_AFTER_TEST=find -name .coverage -delete
 
 ## When trying better hardening the build fails
 # export DEB_BUILD_MAINT_OPTIONS = hardening=+all