Adjust best practices

Author: AndreMarcel99

plugins/modules/zos_fetch.py

@@ -314,11 +314,15 @@
 
 
 try:
-    from zoautil_py import datasets, mvscmd, ztypes, gdgs, zoau_exceptions
+    from zoautil_py import datasets, mvscmd, ztypes, gdgs
 except Exception:
     datasets = ZOAUImportError(traceback.format_exc())
     mvscmd = ZOAUImportError(traceback.format_exc())
     ztypes = ZOAUImportError(traceback.format_exc())
+
+try:
+    from zoautil_py import exceptions as zoau_exceptions
+except Exception:
     zoau_exceptions = ZOAUImportError(traceback.format_exc())
 
 
@@ -637,7 +641,7 @@ def _fetch_pdse(self, src, is_binary, temp_dir=None, encoding=None):
             copy_args["options"] = "-B"
 
         try:
-            rc = datasets.copy(source=src, target=dir_path, **copy_args)
+            datasets.copy(source=src, target=dir_path, **copy_args)
 
         except zoau_exceptions.ZOAUException as copy_exception:
             rmtree(dir_path)
@@ -771,7 +775,7 @@ def _fetch_mvs_data(self, src, is_binary, temp_dir=None, file_override=None, enc
             copy_args["options"] = "-B"
 
         try:
-            rc = datasets.copy(source=src, target=file_path, **copy_args)
+            datasets.copy(source=src, target=file_path, **copy_args)
 
         except zoau_exceptions.ZOAUException as copy_exception:
             os.remove(file_path)