From 6d81c684ccdf502e5e76c04d63e3229e1e5188a2 Mon Sep 17 00:00:00 2001
From: Jeff Widman <jeff@jeffwidman.com>
Date: Wed, 4 Jan 2017 05:31:44 -0800
Subject: [PATCH] Switch monkeypatch fixture to yield syntax

---
 AUTHORS                     |  1 +
 _pytest/monkeypatch.py      |  6 +++---
 testing/test_monkeypatch.py | 14 ++++----------
 3 files changed, 8 insertions(+), 13 deletions(-)

diff --git a/AUTHORS b/AUTHORS
index 8c6fa1b5d..e3bbdc5d1 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -71,6 +71,7 @@ Janne Vanhala
 Jason R. Coombs
 Javier Domingo Cansino
 Javier Romero
+Jeff Widman
 John Towler
 Jon Sonesen
 Jordan Guymon
diff --git a/_pytest/monkeypatch.py b/_pytest/monkeypatch.py
index 852e72bed..2651cf044 100644
--- a/_pytest/monkeypatch.py
+++ b/_pytest/monkeypatch.py
@@ -11,7 +11,7 @@ RE_IMPORT_ERROR_NAME = re.compile("^No module named (.*)$")
 
 
 @pytest.fixture
-def monkeypatch(request):
+def monkeypatch():
     """The returned ``monkeypatch`` fixture provides these
     helper methods to modify objects, dictionaries or os.environ::
 
@@ -30,8 +30,8 @@ def monkeypatch(request):
     will be raised if the set/deletion operation has no target.
     """
     mpatch = MonkeyPatch()
-    request.addfinalizer(mpatch.undo)
-    return mpatch
+    yield mpatch
+    mpatch.undo()
 
 
 def resolve(name):
diff --git a/testing/test_monkeypatch.py b/testing/test_monkeypatch.py
index 3fcd20f32..9d02e2cc0 100644
--- a/testing/test_monkeypatch.py
+++ b/testing/test_monkeypatch.py
@@ -7,16 +7,12 @@ from _pytest.monkeypatch import MonkeyPatch
 
 
 @pytest.fixture
-def mp(request):
+def mp():
     cwd = os.getcwd()
     sys_path = list(sys.path)
-
-    def cleanup():
-        sys.path[:] = sys_path
-        os.chdir(cwd)
-
-    request.addfinalizer(cleanup)
-    return MonkeyPatch()
+    yield MonkeyPatch()
+    sys.path[:] = sys_path
+    os.chdir(cwd)
 
 
 def test_setattr():
@@ -329,5 +325,3 @@ def test_issue1338_name_resolving():
          monkeypatch.delattr('requests.sessions.Session.request')
     finally:
         monkeypatch.undo()
-
-