Trying out ruff formatter on pytest - 7 files modifed

ruff.diff

diff --git a/src/_pytest/_code/code.py b/src/_pytest/_code/code.py
index 0288d7a54..54d5956d4 100644
--- a/src/_pytest/_code/code.py
+++ b/src/_pytest/_code/code.py
@@ -486,9 +486,7 @@ class ExceptionInfo(Generic[E]):
 
         .. versionadded:: 7.4
         """
-        assert (
-            exception.__traceback__
-        ), "Exceptions passed to ExcInfo.from_exception(...) must have a non-None __traceback__."
+        assert exception.__traceback__, "Exceptions passed to ExcInfo.from_exception(...) must have a non-None __traceback__."
         exc_info = (type(exception), exception, exception.__traceback__)
         return cls.from_exc_info(exc_info, exprinfo)
 
diff --git a/src/_pytest/_py/path.py b/src/_pytest/_py/path.py
index 24348525a..e09f69d06 100644
--- a/src/_pytest/_py/path.py
+++ b/src/_pytest/_py/path.py
@@ -760,7 +760,10 @@ class LocalPath:
             #   expected "Callable[[str, Any, Any], TextIOWrapper]"  [arg-type]
             # Which seems incorrect, given io.open supports the given argument types.
             return error.checked_call(
-                io.open, self.strpath, mode, encoding=encoding  # type:ignore[arg-type]
+                io.open,
+                self.strpath,
+                mode,
+                encoding=encoding,  # type:ignore[arg-type]
             )
         return error.checked_call(open, self.strpath, mode)
 
@@ -1277,7 +1280,8 @@ class LocalPath:
         # error: Argument 1 has incompatible type overloaded function; expected "Callable[[str], str]"  [arg-type]
         # Which seems incorrect, given tempfile.mkdtemp supports the given argument types.
         path = error.checked_call(
-            tempfile.mkdtemp, dir=str(rootdir)  # type:ignore[arg-type]
+            tempfile.mkdtemp,
+            dir=str(rootdir),  # type:ignore[arg-type]
         )
         return cls(path)
 
diff --git a/src/_pytest/assertion/rewrite.py b/src/_pytest/assertion/rewrite.py
index 258ed9f9a..dde3954cb 100644
--- a/src/_pytest/assertion/rewrite.py
+++ b/src/_pytest/assertion/rewrite.py
@@ -1013,9 +1013,7 @@ class AssertionRewriter(ast.NodeVisitor):
                     ]
                 ):
                     pytest_temp = self.variable()
-                    self.variables_overwrite[self.scope][
-                        v.left.target.id
-                    ] = v.left  # type:ignore[assignment]
+                    self.variables_overwrite[self.scope][v.left.target.id] = v.left  # type:ignore[assignment]
                     v.left.target.id = pytest_temp
             self.push_format_context()
             res, expl = self.visit(v)
@@ -1059,9 +1057,7 @@ class AssertionRewriter(ast.NodeVisitor):
             if isinstance(arg, ast.Name) and arg.id in self.variables_overwrite.get(
                 self.scope, {}
             ):
-                arg = self.variables_overwrite[self.scope][
-                    arg.id
-                ]  # type:ignore[assignment]
+                arg = self.variables_overwrite[self.scope][arg.id]  # type:ignore[assignment]
             res, expl = self.visit(arg)
             arg_expls.append(expl)
             new_args.append(res)
@@ -1069,9 +1065,7 @@ class AssertionRewriter(ast.NodeVisitor):
             if isinstance(
                 keyword.value, ast.Name
             ) and keyword.value.id in self.variables_overwrite.get(self.scope, {}):
-                keyword.value = self.variables_overwrite[self.scope][
-                    keyword.value.id
-                ]  # type:ignore[assignment]
+                keyword.value = self.variables_overwrite[self.scope][keyword.value.id]  # type:ignore[assignment]
             res, expl = self.visit(keyword.value)
             new_kwargs.append(ast.keyword(keyword.arg, res))
             if keyword.arg:
@@ -1108,13 +1102,9 @@ class AssertionRewriter(ast.NodeVisitor):
         if isinstance(
             comp.left, ast.Name
         ) and comp.left.id in self.variables_overwrite.get(self.scope, {}):
-            comp.left = self.variables_overwrite[self.scope][
-                comp.left.id
-            ]  # type:ignore[assignment]
+            comp.left = self.variables_overwrite[self.scope][comp.left.id]  # type:ignore[assignment]
         if isinstance(comp.left, ast.NamedExpr):
-            self.variables_overwrite[self.scope][
-                comp.left.target.id
-            ] = comp.left  # type:ignore[assignment]
+            self.variables_overwrite[self.scope][comp.left.target.id] = comp.left  # type:ignore[assignment]
         left_res, left_expl = self.visit(comp.left)
         if isinstance(comp.left, (ast.Compare, ast.BoolOp)):
             left_expl = f"({left_expl})"
@@ -1132,9 +1122,7 @@ class AssertionRewriter(ast.NodeVisitor):
                 and next_operand.target.id == left_res.id
             ):
                 next_operand.target.id = self.variable()
-                self.variables_overwrite[self.scope][
-                    left_res.id
-                ] = next_operand  # type:ignore[assignment]
+                self.variables_overwrite[self.scope][left_res.id] = next_operand  # type:ignore[assignment]
             next_res, next_expl = self.visit(next_operand)
             if isinstance(next_operand, (ast.Compare, ast.BoolOp)):
                 next_expl = f"({next_expl})"
diff --git a/src/_pytest/fixtures.py b/src/_pytest/fixtures.py
index d56274629..93cff6abf 100644
--- a/src/_pytest/fixtures.py
+++ b/src/_pytest/fixtures.py
@@ -1120,7 +1120,8 @@ def resolve_fixture_function(
             # Handle the case where fixture is defined not in a test class, but some other class
             # (for example a plugin class with a fixture), see #2270.
             if hasattr(fixturefunc, "__self__") and not isinstance(
-                request.instance, fixturefunc.__self__.__class__  # type: ignore[union-attr]
+                request.instance,
+                fixturefunc.__self__.__class__,  # type: ignore[union-attr]
             ):
                 return fixturefunc
             fixturefunc = getimfunc(fixturedef.func)
diff --git a/src/_pytest/pytester.py b/src/_pytest/pytester.py
index 99d33954d..76ed00762 100644
--- a/src/_pytest/pytester.py
+++ b/src/_pytest/pytester.py
@@ -1428,8 +1428,9 @@ class Pytester:
                 __tracebackhide__ = True
 
                 timeout_message = (
-                    "{seconds} second timeout expired running:"
-                    " {command}".format(seconds=timeout, command=cmdargs)
+                    "{seconds} second timeout expired running:" " {command}".format(
+                        seconds=timeout, command=cmdargs
+                    )
                 )
 
                 popen.kill()
diff --git a/src/_pytest/unittest.py b/src/_pytest/unittest.py
index 34845cec1..b5783c878 100644
--- a/src/_pytest/unittest.py
+++ b/src/_pytest/unittest.py
@@ -217,7 +217,9 @@ class TestCaseFunction(Function):
         # Unwrap potential exception info (see twisted trial support below).
         rawexcinfo = getattr(rawexcinfo, "_rawexcinfo", rawexcinfo)
         try:
-            excinfo = _pytest._code.ExceptionInfo[BaseException].from_exc_info(rawexcinfo)  # type: ignore[arg-type]
+            excinfo = _pytest._code.ExceptionInfo[BaseException].from_exc_info(
+                rawexcinfo
+            )  # type: ignore[arg-type]
             # Invoke the attributes to trigger storing the traceback
             # trial causes some issue there.
             excinfo.value
@@ -362,9 +364,7 @@ def pytest_runtest_makereport(item: Item, call: CallInfo[None]) -> None:
     # handled internally, and doesn't reach here.
     unittest = sys.modules.get("unittest")
     if (
-        unittest
-        and call.excinfo
-        and isinstance(call.excinfo.value, unittest.SkipTest)  # type: ignore[attr-defined]
+        unittest and call.excinfo and isinstance(call.excinfo.value, unittest.SkipTest)  # type: ignore[attr-defined]
     ):
         excinfo = call.excinfo
         call2 = CallInfo[None].from_call(

λ ruff --version
ruff 0.1.2

λ ruff format src
7 files reformatted, 64 files left unchanged