diff --git a/src/pluggy/_tracing.py b/src/pluggy/_tracing.py
index 7be55493..79149721 100644
--- a/src/pluggy/_tracing.py
+++ b/src/pluggy/_tracing.py
@@ -3,11 +3,11 @@
 """
 from __future__ import annotations
 
+import reprlib
 from typing import Any
 from typing import Callable
 from typing import Sequence
 from typing import Tuple
-import reprlib
 
 
 _Writer = Callable[[str], object]
@@ -60,6 +60,7 @@ def setprocessor(self, tags: str | tuple[str, ...], processor: _Processor) -> No
             assert isinstance(tags, tuple)
         self._tags2proc[tags] = processor
 
+
 def _try_repr_or_str(obj: object) -> str:
     try:
         return repr(obj)
@@ -68,6 +69,7 @@ def _try_repr_or_str(obj: object) -> str:
     except BaseException:
         return f'{type(obj).__name__}("{obj}")'
 
+
 def _format_repr_exception(exc: BaseException, obj: object) -> str:
     try:
         exc_info = _try_repr_or_str(exc)
@@ -79,6 +81,7 @@ def _format_repr_exception(exc: BaseException, obj: object) -> str:
         exc_info, type(obj).__name__, id(obj)
     )
 
+
 def _ellipsize(s: str, maxsize: int) -> str:
     if len(s) > maxsize:
         i = max(0, (maxsize - 3) // 2)
@@ -86,6 +89,7 @@ def _ellipsize(s: str, maxsize: int) -> str:
         return s[:i] + "..." + s[len(s) - j :]
     return s
 
+
 class SafeRepr(reprlib.Repr):
     """
     repr.Repr that limits the resulting size of repr() and includes
@@ -136,6 +140,8 @@ def repr_instance(self, x: object, level: int) -> str:
 
 # Maximum size of overall repr of objects to display during assertion errors.
 DEFAULT_REPR_MAX_SIZE = 240
+
+
 def saferepr(
     obj: object, maxsize: Optional[int] = DEFAULT_REPR_MAX_SIZE, use_ascii: bool = False
 ) -> str:
@@ -151,6 +157,7 @@ def saferepr(
 
     return SafeRepr(maxsize, use_ascii).repr(obj)
 
+
 class TagTracerSub:
     def __init__(self, root: TagTracer, tags: tuple[str, ...]) -> None:
         self.root = root
diff --git a/testing/benchmark.py b/testing/benchmark.py
index 2860dfd4..ea13bfb2 100644
--- a/testing/benchmark.py
+++ b/testing/benchmark.py
@@ -3,14 +3,13 @@
 """
 import pytest
 
+from ._tracing import saferepr
 from pluggy import HookimplMarker
 from pluggy import HookspecMarker
 from pluggy import PluginManager
 from pluggy._callers import _multicall
 from pluggy._hooks import HookImpl
 
-from ._tracing import saferepr
-
 
 hookspec = HookspecMarker("example")
 hookimpl = HookimplMarker("example")
diff --git a/testing/test_hookcaller.py b/testing/test_hookcaller.py
index 8a7d1aeb..eaa81adf 100644
--- a/testing/test_hookcaller.py
+++ b/testing/test_hookcaller.py
@@ -450,7 +450,10 @@ def conflict(self) -> None:
         "<class 'test_hookcaller.test_hook_conflict.<locals>.Api1'>"
     )
 
-def test_hookcaller_repr_with_saferepr_failure(hc: HookCaller, addmeth: AddMeth) -> None:
+
+def test_hookcaller_repr_with_saferepr_failure(
+    hc: HookCaller, addmeth: AddMeth
+) -> None:
     @addmeth()
     def he_method1() -> None:
         pass
@@ -466,4 +469,4 @@ def he_method3() -> None:
 
     # Verify that HookCaller.repr with saferepr still works despite the error
     expected_repr = f"<HookCaller {saferepr(hc.name)}>"
-    assert repr(hc) == expected_repr
\ No newline at end of file
+    assert repr(hc) == expected_repr
diff --git a/testing/test_tracer.py b/testing/test_tracer.py
index b63637c6..fa23b52d 100644
--- a/testing/test_tracer.py
+++ b/testing/test_tracer.py
@@ -2,7 +2,8 @@
 
 import pytest
 
-from pluggy._tracing import saferepr, DEFAULT_REPR_MAX_SIZE
+from pluggy._tracing import DEFAULT_REPR_MAX_SIZE
+from pluggy._tracing import saferepr
 from pluggy._tracing import TagTracer
 
 
@@ -79,6 +80,7 @@ def test_setprocessor(rootlogger: TagTracer) -> None:
     tags, args = l2[0]
     assert args == ("seen",)
 
+
 def test_saferepr_simple_repr():
     assert saferepr(1) == "1"
     assert saferepr(None) == "None"
@@ -247,4 +249,4 @@ def __repr__(self):
 
     assert saferepr(SomeClass()).startswith(
         "<[RuntimeError() raised in repr()] SomeClass object at 0x"
-    )
\ No newline at end of file
+    )