diff --git a/paddle/scripts/run_python_tests.sh b/paddle/scripts/run_python_tests.sh
index cde09ce67c24e91fcadd0d8ca78461a151ebb701..2d7dd6a2d2c68645eb33ca2e2c3d0fbf40c06e61 100755
--- a/paddle/scripts/run_python_tests.sh
+++ b/paddle/scripts/run_python_tests.sh
@@ -37,6 +37,7 @@ $PYTHON -m pip install requests matplotlib numpy ipython==5.3
 $PYTHON -m pip list
 echo $PYTHON
 echo PYTHONPATH: $PYTHONPATH
+ls $PYTHONPATH
 python -c 'import numpy; import pkgutil; print numpy.__path__; print(str(list(pkgutil.iter_modules(numpy.__path__))))'
 python -c 'import pkgutil; print(str(list(pkgutil.iter_modules("/opt/python/2.7.12/lib/python2.7/site-packages"))))'
 echo "========================="