From 3616f0f27a656e18588ed204c8cb6f4764e933c8 Mon Sep 17 00:00:00 2001
From: Katelyn FitzGerald <7872563+kafitzgerald@users.noreply.github.com>
Date: Tue, 21 Oct 2025 14:44:13 -0700
Subject: [PATCH 1/2] fix for netCDF4 v1.7.3 iterator changes

---
 src/wrf/util.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/wrf/util.py b/src/wrf/util.py
index 40229c7..03cb7a1 100644
--- a/src/wrf/util.py
+++ b/src/wrf/util.py
@@ -134,7 +134,13 @@ def is_multi_file(wrfin):
         is a single NetCDF file object.
 
     """
-    return (isinstance(wrfin, Iterable) and not isstr(wrfin))
+    try:
+        iter(wrfin)
+        is_iterable = True
+    except Exception:
+        is_iterable = False
+
+    return (is_iterable and not isstr(wrfin))
 
 
 def has_time_coord(wrfnc):

From 72017e526068b75d5a009ded04c535c576faf118 Mon Sep 17 00:00:00 2001
From: Katelyn FitzGerald <7872563+kafitzgerald@users.noreply.github.com>
Date: Wed, 22 Oct 2025 07:01:35 -0700
Subject: [PATCH 2/2] oops update the check to work for the older version of
 netcdf4

---
 src/wrf/util.py | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/wrf/util.py b/src/wrf/util.py
index 03cb7a1..99ef9ae 100644
--- a/src/wrf/util.py
+++ b/src/wrf/util.py
@@ -9,6 +9,7 @@
 from types import GeneratorType
 import datetime as dt
 from inspect import getmodule
+from netCDF4 import Dataset
 
 try:
     from inspect import signature
@@ -134,10 +135,11 @@ def is_multi_file(wrfin):
         is a single NetCDF file object.
 
     """
-    try:
-        iter(wrfin)
+    if isinstance(wrfin, Dataset):
+        is_iterable = False
+    elif isinstance(wrfin, Iterable):
         is_iterable = True
-    except Exception:
+    else:
         is_iterable = False
 
     return (is_iterable and not isstr(wrfin))