diff --git a/_pytest/pytester.py b/_pytest/pytester.py
index 0aa460bb1..2c558183b 100644
--- a/_pytest/pytester.py
+++ b/_pytest/pytester.py
@@ -27,7 +27,6 @@ PYTEST_FULLPATH = os.path.abspath(
     ).replace("$py.class", ".py")
 
 
-
 def pytest_addoption(parser):
     # group = parser.getgroup("pytester", "pytester (self-tests) options")
     parser.addoption('--lsof',