Fix Ruff errors

.ruff.toml

@@ -583,12 +583,15 @@ select = [
 # whitelist ``print`` for stdout messages
 "sphinx/testing/fixtures.py" = ["T201"]
 
+# allow returning ``open()``
+"sphinx/testing/path.py" = ["SIM115"]
+
 # Ruff bug: https://github.com/astral-sh/ruff/issues/6540
 "sphinx/transforms/i18n.py" = ["PGH004"]
 
 "tests/*" = [
     "E501",
-    "T201"  # whitelist ``print`` for tests
+    "T201",  # whitelist ``print`` for tests
 ]
 
 # these tests need old ``typing`` generic aliases

sphinx/ext/napoleon/docstring.py

@@ -1233,7 +1233,7 @@ class NumpyDocstring(GoogleDocstring):
         line1, line2 = self._lines.get(0), self._lines.get(1)
         return (not self._lines or
                 self._is_section_header() or
-                ['', ''] == [line1, line2] or
+                (line1 == line2 == '') or
                 (self._is_in_section and
                     line1 and
                     not self._is_indented(line1, self._section_indent)))

sphinx/util/__init__.py

@@ -202,7 +202,7 @@ def parselinenos(spec: str, total: int) -> list[int]:
     for part in parts:
         try:
             begend = part.strip().split('-')
-            if ['', ''] == begend:
+            if begend == ['', '']:
                 raise ValueError
             if len(begend) == 1:
                 items.append(int(begend[0]) - 1)