diff --git a/_pytest/_code/source.py b/_pytest/_code/source.py
index 37c1b5fa9..5c29dac46 100644
--- a/_pytest/_code/source.py
+++ b/_pytest/_code/source.py
@@ -86,7 +86,7 @@ class Source(object):
         before = Source(before)
         after = Source(after)
         newsource = Source()
-        lines = [ (indent + line) for line in self.lines]
+        lines = [(indent + line) for line in self.lines]
         newsource.lines = before.lines + lines +  after.lines
         return newsource
 
diff --git a/testing/python/approx.py b/testing/python/approx.py
index 97669b076..853f2fe02 100644
--- a/testing/python/approx.py
+++ b/testing/python/approx.py
@@ -243,7 +243,7 @@ class TestApprox(object):
 
     def test_complex(self):
         within_1e6 = [
-            ( 1.000001 + 1.0j, 1.0 + 1.0j),
+            (1.000001 + 1.0j, 1.0 + 1.0j),
             (1.0 + 1.000001j, 1.0 + 1.0j),
             (-1.000001 + 1.0j, -1.0 + 1.0j),
             (1.0 - 1.000001j, 1.0 - 1.0j),
diff --git a/testing/python/metafunc.py b/testing/python/metafunc.py
index 5d0cf39f1..8718f6d52 100644
--- a/testing/python/metafunc.py
+++ b/testing/python/metafunc.py
@@ -141,7 +141,7 @@ class TestMetafunc(object):
 
     @pytest.mark.issue510
     def test_parametrize_empty_list(self):
-        def func( y): pass
+        def func(y): pass
         metafunc = self.Metafunc(func)
         metafunc.parametrize("y", [])
         assert 'skip' in metafunc._calls[0].keywords
diff --git a/testing/test_argcomplete.py b/testing/test_argcomplete.py
index 61ebbcafe..32705e130 100644
--- a/testing/test_argcomplete.py
+++ b/testing/test_argcomplete.py
@@ -52,7 +52,7 @@ class FilesCompleter(object):
             if self.directories:
                 files = _wrapcall(['bash','-c',
                                    "compgen -A directory -- '{p}'".format(p=prefix)])
-                completion += [ f + '/' for f in files]
+                completion += [f + '/' for f in files]
             for x in self.allowednames:
                 completion += _wrapcall(['bash', '-c',
                                          "compgen -A file -X '!*.{0}' -- '{p}'".format(x,p=prefix)])
@@ -63,7 +63,7 @@ class FilesCompleter(object):
             anticomp = _wrapcall(['bash', '-c',
                                   "compgen -A directory -- '{p}'".format(p=prefix)])
 
-            completion = list( set(completion) - set(anticomp))
+            completion = list(set(completion) - set(anticomp))
 
             if self.directories:
                 completion += [f + '/' for f in anticomp]
diff --git a/tox.ini b/tox.ini
index 66c52f3b1..3e74833b0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -196,6 +196,6 @@ filterwarnings =
     ignore:.*inspect.getargspec.*deprecated, use inspect.signature.*:DeprecationWarning
 
 [flake8]
-ignore = E201,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 = 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
 max-line-length = 120
 exclude = _pytest/vendored_packages/pluggy.py