fix path and file opening | refs #27883

utils.py

@@ -227,7 +227,8 @@ def set_conf(key: str, value: str, override: bool = False) -> bool:
     state = False
 
     # open conf.sh file
-    conf_fh = open(Path(__file__, CONF_PATH).resolve(), "w")
+    base_dir = Path(__file__).resolve().parent
+    conf_fh = open(Path(base_dir, CONF_PATH).resolve(), "w+")
     # get its content
     conf = conf_fh.read()