Fix flake8 E305 and E306 errors

These errors started to appear with flake8-3.1.1, while they don't appear with
version 3.1.0 (weird).

testing/code/test_code.py

@@ -24,6 +24,7 @@ def test_code_with_class():
         pass
     pytest.raises(TypeError, "_pytest._code.Code(A)")
 
+
 if True:
     def x():
         pass
@@ -68,8 +69,10 @@ def test_code_from_func():
 
 def test_unicode_handling():
     value = py.builtin._totext('\xc4\x85\xc4\x87\n', 'utf-8').encode('utf8')
+
     def f():
         raise Exception(value)
+
     excinfo = pytest.raises(Exception, f)
     str(excinfo)
     if sys.version_info[0] < 3:
@@ -79,8 +82,10 @@ def test_unicode_handling():
 @pytest.mark.skipif(sys.version_info[0] >= 3, reason='python 2 only issue')
 def test_unicode_handling_syntax_error():
     value = py.builtin._totext('\xc4\x85\xc4\x87\n', 'utf-8').encode('utf8')
+
     def f():
         raise SyntaxError('invalid syntax', (None, 1, 3, value))
+
     excinfo = pytest.raises(Exception, f)
     str(excinfo)
     if sys.version_info[0] < 3:

testing/code/test_excinfo.py

@@ -56,8 +56,10 @@ def test_excinfo_simple():
 def test_excinfo_getstatement():
     def g():
         raise ValueError
+
     def f():
         g()
+
     try:
         f()
     except ValueError:
@@ -168,11 +170,13 @@ class TestTraceback_f_g_h:
             #
             raise ValueError
             #
+
         def g():
             #
             __tracebackhide__ = tracebackhide
             f()
             #
+
         def h():
             #
             g()
@@ -214,15 +218,18 @@ class TestTraceback_f_g_h:
     def test_traceback_no_recursion_index(self):
         def do_stuff():
             raise RuntimeError
+
         def reraise_me():
             import sys
             exc, val, tb = sys.exc_info()
             py.builtin._reraise(exc, val, tb)
+
         def f(n):
             try:
                 do_stuff()
             except:
                 reraise_me()
+
         excinfo = pytest.raises(RuntimeError, f, 8)
         traceback = excinfo.traceback
         recindex = traceback.recursionindex()
@@ -245,17 +252,18 @@ class TestTraceback_f_g_h:
         excinfo = pytest.raises(ValueError, fail)
         assert excinfo.traceback.recursionindex() is None
 
-
-
     def test_traceback_getcrashentry(self):
         def i():
             __tracebackhide__ = True
             raise ValueError
+
         def h():
             i()
+
         def g():
             __tracebackhide__ = True
             h()
+
         def f():
             g()
 
@@ -271,6 +279,7 @@ class TestTraceback_f_g_h:
         def g():
             __tracebackhide__ = True
             raise ValueError
+
         def f():
             __tracebackhide__ = True
             g()
@@ -465,11 +474,13 @@ raise ValueError()
         class FakeCode(object):
             class raw:
                 co_filename = '?'
+
             path = '?'
             firstlineno = 5
 
             def fullsource(self):
                 return None
+
             fullsource = property(fullsource)
 
         class FakeFrame(object):
@@ -491,17 +502,21 @@ raise ValueError()
         class FakeExcinfo(_pytest._code.ExceptionInfo):
             typename = "Foo"
             value = Exception()
+
             def __init__(self):
                 pass
 
             def exconly(self, tryshort):
                 return "EXC"
+
             def errisinstance(self, cls):
                 return False
 
         excinfo = FakeExcinfo()
+
         class FakeRawTB(object):
             tb_next = None
+
         tb = FakeRawTB()
         excinfo.traceback = Traceback(tb)
 
@@ -719,8 +734,10 @@ raise ValueError()
         excinfo = pytest.raises(ValueError, mod.entry)
 
         p = FormattedExcinfo()
+
         def raiseos():
             raise OSError(2)
+
         monkeypatch.setattr(py.std.os, 'getcwd', raiseos)
         assert p._makepath(__file__) == __file__
         p.repr_traceback(excinfo)
@@ -789,9 +806,11 @@ raise ValueError()
 
     def test_reprexcinfo_unicode(self):
         from _pytest._code.code import TerminalRepr
+
         class MyRepr(TerminalRepr):
             def toterminal(self, tw):
                 tw.line(py.builtin._totext("я", "utf-8"))
+
         x = py.builtin._totext(MyRepr())
         assert x == py.builtin._totext("я", "utf-8")