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

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

anndata/_core/file_backing.py

@@ -66,9 +66,13 @@ def filename(self) -> Path:
 
     @filename.setter
     def filename(self, filename: PathLike | None):
-        self._filename = None if filename is None \
-            else filename if isinstance(filename, remfile.RemFile.RemFile) \
+        self._filename = (
+            None
+            if filename is None
+            else filename
+            if isinstance(filename, remfile.RemFile.RemFile)
             else Path(filename)
+        )
 
     def open(
         self,

anndata/tests/test_readwrite.py

@@ -799,13 +799,17 @@ def test_io_dtype(tmp_path, diskfmt, dtype):
     assert curr.X.dtype == dtype
 
 
-needs_remfile = pytest.mark.skipif(not find_spec("remfile"), reason="remfile is not installed")
+needs_remfile = pytest.mark.skipif(
+    not find_spec("remfile"), reason="remfile is not installed"
+)
+
 
 @needs_remfile
 def test_read_s3_remfile():
     import remfile
+
     # TODO: change to a different datafile?
     url_had = "https://allen-brain-cell-atlas.s3.us-west-2.amazonaws.com/expression_matrices/WMB-10Xv2/20230630/WMB-10Xv2-TH-log2.h5ad"
     file_had = remfile.File(url_had)
-    data = ad.read_h5ad(file_had, backed='r')
+    data = ad.read_h5ad(file_had, backed="r")
     assert data.X.shape == (131212, 32285)