diff --git a/_pytest/_code/code.py b/_pytest/_code/code.py
index 29f046e61..54258cc1f 100644
--- a/_pytest/_code/code.py
+++ b/_pytest/_code/code.py
@@ -119,7 +119,7 @@ class Frame(object):
         """
         f_locals = self.f_locals.copy()
         f_locals.update(vars)
-        py.builtin.exec_(code, self.f_globals, f_locals )
+        py.builtin.exec_(code, self.f_globals, f_locals)
 
     def repr(self, object):
         """ return a 'safe' (non-recursive, one-line) string repr for 'object'
diff --git a/testing/code/test_excinfo.py b/testing/code/test_excinfo.py
index 2783f7685..e5946f61e 100644
--- a/testing/code/test_excinfo.py
+++ b/testing/code/test_excinfo.py
@@ -113,7 +113,7 @@ class TestTraceback_f_g_h(object):
 
     def test_traceback_entry_getsource(self):
         tb = self.excinfo.traceback
-        s = str(tb[-1].getsource() )
+        s = str(tb[-1].getsource())
         assert s.startswith("def f():")
         assert s.endswith("raise ValueError")
 
diff --git a/testing/test_assertion.py b/testing/test_assertion.py
index 3f6ae394c..a74496a65 100644
--- a/testing/test_assertion.py
+++ b/testing/test_assertion.py
@@ -881,7 +881,7 @@ def test_exception_handling_no_traceback(testdir):
     ])
 
 
-@pytest.mark.skipif("'__pypy__' in sys.builtin_module_names or sys.platform.startswith('java')" )
+@pytest.mark.skipif("'__pypy__' in sys.builtin_module_names or sys.platform.startswith('java')")
 def test_warn_missing(testdir):
     testdir.makepyfile("")
     result = testdir.run(sys.executable, "-OO", "-m", "pytest", "-h")
diff --git a/tox.ini b/tox.ini
index 3e74833b0..b8d0ece8f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -196,6 +196,6 @@ filterwarnings =
     ignore:.*inspect.getargspec.*deprecated, use inspect.signature.*:DeprecationWarning
 
 [flake8]
-ignore = E202,E203,E221,E222,E225,E226,E231,E241,E251,E261,E262,E265,E271,E272,E293,E301,E302,E303,E401,E402,E501,E701,E702,E704,E712,E731
+ignore = E203,E221,E222,E225,E226,E231,E241,E251,E261,E262,E265,E271,E272,E293,E301,E302,E303,E401,E402,E501,E701,E702,E704,E712,E731
 max-line-length = 120
 exclude = _pytest/vendored_packages/pluggy.py