diff --git a/_pytest/fixtures.py b/_pytest/fixtures.py
index c10bde4d9..7ff41d7d4 100644
--- a/_pytest/fixtures.py
+++ b/_pytest/fixtures.py
@@ -569,7 +569,7 @@ class SubRequest(FixtureRequest):
         self._fixturedef = fixturedef
         self.addfinalizer = fixturedef.addfinalizer
         self._pyfuncitem = request._pyfuncitem
-        self._fixture_values  = request._fixture_values
+        self._fixture_values = request._fixture_values
         self._fixture_defs = request._fixture_defs
         self._arg2fixturedefs = request._arg2fixturedefs
         self._arg2index = request._arg2index
diff --git a/_pytest/pytester.py b/_pytest/pytester.py
index d85cb45db..4fc90e98c 100644
--- a/_pytest/pytester.py
+++ b/_pytest/pytester.py
@@ -406,7 +406,7 @@ class Testdir:
 
     def __init__(self, request, tmpdir_factory):
         self.request = request
-        self._mod_collections  = WeakKeyDictionary()
+        self._mod_collections = WeakKeyDictionary()
         # XXX remove duplication with tmpdir plugin
         basetmp = tmpdir_factory.ensuretemp("testdir")
         name = request.function.__name__
diff --git a/_pytest/warnings.py b/_pytest/warnings.py
index 4fe28bd31..915862a9d 100644
--- a/_pytest/warnings.py
+++ b/_pytest/warnings.py
@@ -78,7 +78,7 @@ def catch_warnings_for_item(item):
             if unicode_warning:
                 warnings.warn(
                     "Warning is using unicode non convertible to ascii, "
-                    "converting to a safe representation:\n  %s"  % msg,
+                    "converting to a safe representation:\n  %s" % msg,
                     UnicodeWarning)
 
 
diff --git a/testing/code/test_excinfo.py b/testing/code/test_excinfo.py
index e5946f61e..73fd51595 100644
--- a/testing/code/test_excinfo.py
+++ b/testing/code/test_excinfo.py
@@ -1017,18 +1017,18 @@ raise ValueError()
         tw = TWMock()
         r.toterminal(tw)
         for line in tw.lines: print (line)
-        assert tw.lines[0]  == ""
-        assert tw.lines[1]  == "    def f():"
-        assert tw.lines[2]  == "        try:"
-        assert tw.lines[3]  == ">           g()"
-        assert tw.lines[4]  == ""
+        assert tw.lines[0] == ""
+        assert tw.lines[1] == "    def f():"
+        assert tw.lines[2] == "        try:"
+        assert tw.lines[3] == ">           g()"
+        assert tw.lines[4] == ""
         line = tw.get_write_msg(5)
         assert line.endswith('mod.py')
-        assert tw.lines[6]  == ':6: '
-        assert tw.lines[7]  == ("_ ", None)
-        assert tw.lines[8]  == ""
-        assert tw.lines[9]  == "    def g():"
-        assert tw.lines[10]  == ">       raise ValueError()"
+        assert tw.lines[6] == ':6: '
+        assert tw.lines[7] == ("_ ", None)
+        assert tw.lines[8] == ""
+        assert tw.lines[9] == "    def g():"
+        assert tw.lines[10] == ">       raise ValueError()"
         assert tw.lines[11] == "E       ValueError"
         assert tw.lines[12] == ""
         line = tw.get_write_msg(13)
diff --git a/tox.ini b/tox.ini
index e1c2392c6..3f8e590c6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -196,6 +196,6 @@ filterwarnings =
     ignore:.*inspect.getargspec.*deprecated, use inspect.signature.*:DeprecationWarning
 
 [flake8]
-ignore = 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 = 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