[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

xarray/coding/times.py

@@ -1373,21 +1373,21 @@ class CFDatetimeCoder(VariableCoder):
     on_error  :  str, optional
         What to do if there is an error when attempting to decode
         a time variable. Options are: "raise", "warn", "ignore".
-        Defaults to "raise". 
+        Defaults to "raise".
     """
 
     def __init__(
         self,
         use_cftime: bool | None = None,
         time_unit: PDDatetimeUnitOptions = "ns",
-        on_error: str = "raise"
+        on_error: str = "raise",
     ) -> None:
         self.use_cftime = use_cftime
         self.time_unit = time_unit
         if on_error in {"raise", "warn", "ignore"}:
             self.on_error = on_error
         else:
-            raise ValueError('on_error must be one of "raise", "warn", "ignore")')  
+            raise ValueError('on_error must be one of "raise", "warn", "ignore")')
 
     def encode(self, variable: Variable, name: T_Name = None) -> Variable:
         if np.issubdtype(variable.dtype, np.datetime64) or contains_cftime_datetimes(

xarray/tests/test_coding_times.py

@@ -2230,15 +2230,14 @@ def test_roundtrip_empty_datetime64_array(time_unit: PDDatetimeUnitOptions) -> N
     assert_identical(variable, roundtripped)
     assert roundtripped.dtype == variable.dtype
 
+
 @requires_cftime
 def test_on_error_raises():
     """
     By default, decoding errors should raise
     """
     array = np.array([0, 1, 2], dtype=np.dtype("int64"))
-    encoded = Variable(["time"],
-                       array,
-                       attrs={"units": "ms since 00:00:00"})
+    encoded = Variable(["time"], array, attrs={"units": "ms since 00:00:00"})
 
     # default is "raise"
     coder = CFDatetimeCoder()
@@ -2252,15 +2251,14 @@ def test_on_error_raises():
     with pytest.raises(ValueError):
         coder.decode(encoded)
 
+
 @requires_cftime
 def test_on_error_ignore():
     """
     If on_error="ignore", no change.
     """
     array = np.array([0, 1, 2], dtype=np.dtype("int64"))
-    encoded = Variable(["time"],
-                       array,
-                       attrs={"units": "ms since 00:00:00"})
+    encoded = Variable(["time"], array, attrs={"units": "ms since 00:00:00"})
 
     coder = CFDatetimeCoder(on_error="ignore")
 
@@ -2269,20 +2267,19 @@ def test_on_error_ignore():
     # it shouldn't have changed the variable
     assert decoded is encoded
 
+
 @requires_cftime
 def test_on_error_warn():
     """
     If on_error="warn", no change, with a warning.
     """
     array = np.array([0, 1, 2], dtype=np.dtype("int64"))
-    encoded = Variable(["time"],
-                       array,
-                       attrs={"units": "ms since 00:00:00"})
+    encoded = Variable(["time"], array, attrs={"units": "ms since 00:00:00"})
 
     coder = CFDatetimeCoder(on_error="warn")
 
     with pytest.warns(UserWarning, match="unable to decode time units"):
         decoded = coder.decode(encoded)
 
-    # it shouldn't have changed the variable 
+    # it shouldn't have changed the variable
     assert decoded is encoded