From 0b8b006db49371fe70e51828454d95a0aaa016e3 Mon Sep 17 00:00:00 2001
From: Daniel Hahler <git@thequod.de>
Date: Thu, 9 May 2019 15:36:49 +0200
Subject: [PATCH] minor: improve formatting

---
 src/_pytest/fixtures.py | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/_pytest/fixtures.py b/src/_pytest/fixtures.py
index 902904457..53df79d35 100644
--- a/src/_pytest/fixtures.py
+++ b/src/_pytest/fixtures.py
@@ -853,11 +853,9 @@ class FixtureDef(object):
                     exceptions.append(sys.exc_info())
             if exceptions:
                 e = exceptions[0]
-                del (
-                    exceptions
-                )  # ensure we don't keep all frames alive because of the traceback
+                # Ensure to not keep frame references through traceback.
+                del exceptions
                 six.reraise(*e)
-
         finally:
             hook = self._fixturemanager.session.gethookproxy(request.node.fspath)
             hook.pytest_fixture_post_finalizer(fixturedef=self, request=request)