Fixed unit test problem with ROOT import

Author: drpaulnilsson

PILOTVERSION

@@ -1 +1 @@
-3.12.5.6
+3.13.0.6

pilot/scripts/open_remote_file.py

@@ -16,7 +16,7 @@
 # under the License.
 #
 # Authors:
-# - Paul Nilsson, paul.nilsson@cern.ch, 2020-24
+# - Paul Nilsson, paul.nilsson@cern.ch, 2020-26
 
 """Script for remote file open verification."""
 
@@ -33,7 +33,10 @@
 from collections import namedtuple
 from typing import Any
 
-import ROOT
+try:
+    import ROOT  # optional runtime dependency; only available in ATLAS environments
+except ModuleNotFoundError:
+    ROOT = None  # type: ignore[assignment]
 
 from pilot.util.config import config
 from pilot.util.filehandling import write_json

pilot/util/constants.py

@@ -26,8 +26,8 @@
 
 # Pilot version
 RELEASE = '3'   # released number should be fixed at 3 for Pilot 3
-VERSION = '12'  # version number is '1' for first release, '0' until then, increased for bigger updates
-REVISION = '5'  # revision number should be reset to '0' for every new version release, increased for small updates
+VERSION = '13'  # version number is '1' for first release, '0' until then, increased for bigger updates
+REVISION = '0'  # revision number should be reset to '0' for every new version release, increased for small updates
 BUILD = '6'        # build number should be reset to '1' for every new development cycle
 
 SUCCESS = 0