Merge pull request #809 from Unidata/dependabot-pip-ci-numpy-2.1.3

MNT: (deps): Bump numpy from 1.26.0 to 2.1.3 in /ci

ci/doc_requirements.txt

@@ -1,4 +1,4 @@
-cartopy==0.22
+cartopy==0.24
 matplotlib==3.9.2
 metpy==1.6.3
 sphinx==5.2.3

ci/requirements.txt

@@ -1,5 +1,5 @@
 beautifulsoup4==4.12.3
-numpy==1.26.0
+numpy==2.1.3
 pandas==2.2.3
 protobuf==5.28.2
 requests==2.28.1

pyproject.toml

@@ -26,7 +26,7 @@ requires-python = ">=3.10"
 dependencies = [
     "beautifulsoup4>=4.9.1",
     "numpy>=1.22.0",
-    "pandas>=1.3.4",
+    "pandas>=1.4.3",
     "protobuf>=3.20.0",
     "requests>=2.28.1"
 ]

src/siphon/ncss.py

@@ -426,12 +426,20 @@ def parse_csv_header(line):
     return names, units
 
 
+# Only needed until we support only numpy >= 2.0.
+def _decode_if_needed(s):
+    try:
+        return s.decode('utf-8')
+    except AttributeError:
+        return s
+
+
 def parse_csv_dataset(data, handle_units):
     """Parse CSV data into a netCDF-like dataset."""
     fobj = BytesIO(data)
     names, units = parse_csv_header(fobj.readline().decode('utf-8'))
     arrs = np.genfromtxt(fobj, dtype=None, names=names, delimiter=',',
-                         converters={'date': lambda s: parse_iso_date(s.decode('utf-8'))})
+                         converters={'date': lambda s: parse_iso_date(_decode_if_needed(s))})
     d = {}
     for f in arrs.dtype.fields:
         dat = arrs[f]