Added log line

tools/run_tests/run_python.sh

@@ -36,6 +36,7 @@ cd $(dirname $0)/../..
 root=`pwd`
 export LD_LIBRARY_PATH=$root/libs/opt
 source python2.7_virtual_environment/bin/activate
+which python2.7
 # TODO(issue 215): Properly itemize these in run_tests.py so that they can be parallelized.
 # TODO(atash): Enable dynamic unused port discovery for this test.
 python2.7 -B test/compiler/python_plugin_test.py --build_mode=opt