Task #10898: cherry-merge r37587 from trunk: fix LOFAR build to DRAGNET:...

Task #10898: cherry-merge r37587 from trunk: fix LOFAR build to DRAGNET: adjust variants file for new required python deps

CMake/variants/variants.dragnet

@@ -20,8 +20,12 @@ set(CASA_ROOT_DIR         /opt/casasynthesis)  # for awimager2; pkg has no relea
 set(DAL_ROOT_DIR          /opt/lofardal-2.5.0)
 set(AOFLAGGER_ROOT_DIR    /opt/aoflagger-2.9.0)
 
-# This is a Python runtime dependency and thus shouldn't be needed here. But let's fix the build for the mo.
+# Python runtime dependencies (DRAGNET build/install script runs in a clean environment without PYTHONPATH)
+# These are not *build* dependencies, but set as config dependencies to be able to run self-tests and catch some breakages early. Debatable.
+# NOTE: /usr/local is on NFS. DO NOT depend on NFS for stall sensitive packages such as Cobalt (+ dependencies).
 set(BDSF_ROOT_DIR         /usr/local/lib64/python2.7/site-packages)
+set(PYTHON_MONETDB        /usr/local/lib/python2.7/site-packages/monetdb/__init__.pyc)
+set(PYTHON_XMLRUNNER      /usr/local/lib/python2.7/site-packages/xmlrunner/__init__.pyc)
 
 # Force using /usr libs over custom (redundant) libs in /usr/local (NFS).
 # They may clash with libs that other deps (e.g. casacore) linked to, and are on NFS (may cause latency spikes in COBALT).