refactor: handle None case for Path initialization in resources.py and parse_args.py

Author: soto-raul

libensemble/resources/resources.py

@@ -296,7 +296,7 @@ def get_global_nodelist(node_file=Resources.DEFAULT_NODEFILE, rundir=None, env_r
 
         In dedicated mode, any node with a libE worker is removed from the list.
         """
-        top_level_dir = Path(rundir) or Path.cwd()
+        top_level_dir = Path(rundir) if rundir else Path.cwd()
         node_filepath = top_level_dir / node_file
         global_nodelist = []
         if os.path.isfile(node_filepath):

libensemble/tools/parse_args.py

@@ -116,7 +116,7 @@ def _tcp_parse_args(args):
 def _ssh_parse_args(args):
     """Parses arguments for SSH with reverse tunnel."""
     nworkers = len(args.workers)
-    worker_pwd = Path(args.worker_pwd) or Path.cwd()
+    worker_pwd = Path(args.worker_pwd) if args.worker_pwd else Path.cwd()
     script_dir, script_name = os.path.split(sys.argv[0])
     worker_script_name = worker_pwd / script_name
     ssh = ["ssh", "-R", "{tunnel_port}:localhost:{manager_port}", "{worker_ip}"]