Sync run_test.py with that of silx

run_tests.py

@@ -2,7 +2,7 @@
 # coding: utf-8
 # /*##########################################################################
 #
-# Copyright (c) 2015-2017 European Synchrotron Radiation Facility
+# Copyright (c) 2015-2018 European Synchrotron Radiation Facility
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -115,7 +115,6 @@ except Exception as error:
 else:
     logger.info("Numpy %s", numpy.version.version)
 
-
 try:
     import h5py
 except Exception as error:
@@ -314,10 +313,10 @@ def import_project_module(project_name, project_dir):
     if "--installed" in sys.argv:
         try:
             module = importer(project_name)
-        except ImportError:
-            raise ImportError(
-                "%s not installed: Cannot run tests on installed version" %
-                PROJECT_NAME)
+        except Exception:
+            logger.error("Cannot run tests on installed version: %s not installed or raising error.",
+                         project_name)
+            raise
     else:  # Use built source
         build_dir = build_project(project_name, project_dir)
         if build_dir is None: