[pygobject] Fix new PEP8 errors



commit 6695931a0dfb7d9db9ea14a128108342c3d0be89
Author: Christoph Reiter <creiter src gnome org>
Date:   Mon Jan 9 20:44:11 2017 +0100

    Fix new PEP8 errors
    
    Two new errors popped up:
    
    * E305 expected 2 blank lines after class or function definition
    * E741 ambiguous variable name
    
    https://bugzilla.gnome.org/show_bug.cgi?id=776009

 examples/cairo-demo.py             |    1 +
 examples/properties.py             |    1 +
 gi/_option.py                      |    1 +
 gi/overrides/GIMarshallingTests.py |    2 ++
 gi/overrides/GLib.py               |   19 +++++++++++++++++++
 gi/overrides/GObject.py            |   12 ++++++++++++
 gi/overrides/Gdk.py                |    3 +++
 gi/overrides/Gio.py                |    2 ++
 gi/overrides/Gtk.py                |   35 +++++++++++++++++++++++++++++++++++
 gi/overrides/Pango.py              |    2 ++
 gi/types.py                        |    1 +
 pygtkcompat/pygtkcompat.py         |    1 +
 tests/test_generictreemodel.py     |    1 +
 tests/test_interface.py            |    4 ++++
 tests/test_iochannel.py            |    1 +
 tests/test_overrides_gtk.py        |   10 +++++-----
 tests/test_properties.py           |   12 ++++++------
 tests/test_signal.py               |    1 +
 18 files changed, 98 insertions(+), 11 deletions(-)
---
diff --git a/examples/cairo-demo.py b/examples/cairo-demo.py
index 7b90ec3..ee33cdd 100755
--- a/examples/cairo-demo.py
+++ b/examples/cairo-demo.py
@@ -126,5 +126,6 @@ def main():
     win.show_all()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/properties.py b/examples/properties.py
index 4c8a20c..257e80a 100644
--- a/examples/properties.py
+++ b/examples/properties.py
@@ -13,6 +13,7 @@ class MyObject(GObject.GObject):
     def readonly(self):
         return 'readonly'
 
+
 GObject.type_register(MyObject)
 
 print("MyObject properties: ", list(MyObject.props))
diff --git a/gi/_option.py b/gi/_option.py
index 2d30abf..eb711e1 100644
--- a/gi/_option.py
+++ b/gi/_option.py
@@ -368,4 +368,5 @@ class OptionParser(optparse.OptionParser):
         args = args[2:-len(old_args)]
         return options, args
 
+
 make_option = Option
diff --git a/gi/overrides/GIMarshallingTests.py b/gi/overrides/GIMarshallingTests.py
index b675adf..e9f8e33 100644
--- a/gi/overrides/GIMarshallingTests.py
+++ b/gi/overrides/GIMarshallingTests.py
@@ -41,6 +41,7 @@ class OverridesStruct(GIMarshallingTests.OverridesStruct):
     def method(self):
         return GIMarshallingTests.OverridesStruct.method(self) / 7
 
+
 OverridesStruct = override(OverridesStruct)
 __all__.append('OverridesStruct')
 
@@ -66,5 +67,6 @@ class OverridesObject(GIMarshallingTests.OverridesObject):
         """Overridden doc string."""
         return GIMarshallingTests.OverridesObject.method(self) / 7
 
+
 OverridesObject = override(OverridesObject)
 __all__.append('OverridesObject')
diff --git a/gi/overrides/GLib.py b/gi/overrides/GLib.py
index 82010c0..ab0e83a 100644
--- a/gi/overrides/GLib.py
+++ b/gi/overrides/GLib.py
@@ -477,6 +477,7 @@ def get_string(self):
     value, length = GLib.Variant.get_string(self)
     return value
 
+
 setattr(Variant, 'get_string', get_string)
 
 __all__.append('Variant')
@@ -487,6 +488,8 @@ def markup_escape_text(text, length=-1):
         return GLib.markup_escape_text(text.decode('UTF-8'), length)
     else:
         return GLib.markup_escape_text(text, length)
+
+
 __all__.append('markup_escape_text')
 
 
@@ -585,6 +588,7 @@ class MainLoop(GLib.MainLoop):
             # caught by _main_loop_sigint_handler()
             raise KeyboardInterrupt
 
+
 MainLoop = override(MainLoop)
 __all__.append('MainLoop')
 
@@ -594,6 +598,7 @@ class MainContext(GLib.MainContext):
     def iteration(self, may_block=True):
         return super(MainContext, self).iteration(may_block)
 
+
 MainContext = override(MainContext)
 __all__.append('MainContext')
 
@@ -643,6 +648,7 @@ class Source(GLib.Source):
 
     can_recurse = property(__get_can_recurse, __set_can_recurse)
 
+
 Source = override(Source)
 __all__.append('Source')
 
@@ -658,6 +664,7 @@ class Idle(Source):
         if priority != GLib.PRIORITY_DEFAULT:
             self.set_priority(priority)
 
+
 __all__.append('Idle')
 
 
@@ -671,6 +678,7 @@ class Timeout(Source):
         if priority != GLib.PRIORITY_DEFAULT:
             self.set_priority(priority)
 
+
 __all__.append('Timeout')
 
 
@@ -679,6 +687,7 @@ def idle_add(function, *user_data, **kwargs):
     priority = kwargs.get('priority', GLib.PRIORITY_DEFAULT_IDLE)
     return GLib.idle_add(priority, function, *user_data)
 
+
 __all__.append('idle_add')
 
 
@@ -686,6 +695,7 @@ def timeout_add(interval, function, *user_data, **kwargs):
     priority = kwargs.get('priority', GLib.PRIORITY_DEFAULT)
     return GLib.timeout_add(priority, interval, function, *user_data)
 
+
 __all__.append('timeout_add')
 
 
@@ -693,6 +703,7 @@ def timeout_add_seconds(interval, function, *user_data, **kwargs):
     priority = kwargs.get('priority', GLib.PRIORITY_DEFAULT)
     return GLib.timeout_add_seconds(priority, interval, function, *user_data)
 
+
 __all__.append('timeout_add_seconds')
 
 
@@ -750,6 +761,7 @@ def _io_add_watch_get_args(channel, priority_, condition, *cb_and_user_data, **k
 
     return real_channel, priority_, condition, func_fdtransform, user_data
 
+
 __all__.append('_io_add_watch_get_args')
 
 
@@ -758,6 +770,7 @@ def io_add_watch(*args, **kwargs):
     channel, priority, condition, func, user_data = _io_add_watch_get_args(*args, **kwargs)
     return GLib.io_add_watch(channel, priority, condition, func, *user_data)
 
+
 __all__.append('io_add_watch')
 
 
@@ -839,6 +852,7 @@ class IOChannel(GLib.IOChannel):
     # Python 2.x compatibility
     next = __next__
 
+
 IOChannel = override(IOChannel)
 __all__.append('IOChannel')
 
@@ -853,6 +867,7 @@ class PollFD(GLib.PollFD):
         self.fd = fd
         self.events = events
 
+
 PollFD = override(PollFD)
 __all__.append('PollFD')
 
@@ -900,6 +915,7 @@ def _child_watch_add_get_args(priority_or_pid, pid_or_callback, *args, **kwargs)
 
     return priority, pid, callback, user_data
 
+
 # we need this to be accessible for unit testing
 __all__.append('_child_watch_add_get_args')
 
@@ -909,12 +925,14 @@ def child_watch_add(*args, **kwargs):
     priority, pid, function, data = _child_watch_add_get_args(*args, **kwargs)
     return GLib.child_watch_add(priority, pid, function, *data)
 
+
 __all__.append('child_watch_add')
 
 
 def get_current_time():
     return GLib.get_real_time() * 0.000001
 
+
 get_current_time = deprecated(get_current_time, 'GLib.get_real_time()')
 
 __all__.append('get_current_time')
@@ -925,6 +943,7 @@ __all__.append('get_current_time')
 def filename_from_utf8(utf8string, len=-1):
     return GLib.filename_from_utf8(utf8string, len)[0]
 
+
 __all__.append('filename_from_utf8')
 
 
diff --git a/gi/overrides/GObject.py b/gi/overrides/GObject.py
index 28408b2..2e8f755 100644
--- a/gi/overrides/GObject.py
+++ b/gi/overrides/GObject.py
@@ -351,6 +351,7 @@ class Value(GObjectModule.Value):
     def __repr__(self):
         return '<Value (%s) %s>' % (self.g_type.name, self.get_value())
 
+
 Value = override(Value)
 __all__.append('Value')
 
@@ -361,6 +362,7 @@ def type_from_name(name):
         raise RuntimeError('unknown type name: %s' % name)
     return type_
 
+
 __all__.append('type_from_name')
 
 
@@ -370,6 +372,7 @@ def type_parent(type_):
         raise RuntimeError('no parent for type')
     return parent
 
+
 __all__.append('type_parent')
 
 
@@ -384,6 +387,7 @@ def signal_list_ids(type_):
     _validate_type_for_signal_method(type_)
     return GObjectModule.signal_list_ids(type_)
 
+
 __all__.append('signal_list_ids')
 
 
@@ -391,6 +395,7 @@ def signal_list_names(type_):
     ids = signal_list_ids(type_)
     return tuple(GObjectModule.signal_name(i) for i in ids)
 
+
 __all__.append('signal_list_names')
 
 
@@ -398,6 +403,7 @@ def signal_lookup(name, type_):
     _validate_type_for_signal_method(type_)
     return GObjectModule.signal_lookup(name, type_)
 
+
 __all__.append('signal_lookup')
 
 
@@ -430,6 +436,7 @@ def signal_query(id_or_name, type_=None):
                        res.signal_flags, res.return_type,
                        tuple(res.param_types))
 
+
 __all__.append('signal_query')
 
 
@@ -465,6 +472,7 @@ def signal_handler_block(obj, handler_id):
     GObjectModule.signal_handler_block(obj, handler_id)
     return _HandlerBlockManager(obj, handler_id)
 
+
 __all__.append('signal_handler_block')
 
 
@@ -486,6 +494,7 @@ def signal_parse_name(detailed_signal, itype, force_detail_quark):
     else:
         raise ValueError('%s: unknown signal name: %s' % (itype, detailed_signal))
 
+
 __all__.append('signal_parse_name')
 
 
@@ -493,6 +502,7 @@ def remove_emission_hook(obj, detailed_signal, hook_id):
     signal_id, detail = signal_parse_name(detailed_signal, obj, True)
     GObjectModule.signal_remove_emission_hook(signal_id, hook_id)
 
+
 __all__.append('remove_emission_hook')
 
 
@@ -503,6 +513,7 @@ def signal_accumulator_first_wins(ihint, return_accu, handler_return, user_data=
     # Stop emission but return the result of the last handler
     return (False, handler_return)
 
+
 __all__.append('signal_accumulator_first_wins')
 
 
@@ -510,6 +521,7 @@ def signal_accumulator_true_handled(ihint, return_accu, handler_return, user_dat
     # Stop emission if the last handler returns True
     return (not handler_return, handler_return)
 
+
 __all__.append('signal_accumulator_true_handled')
 
 
diff --git a/gi/overrides/Gdk.py b/gi/overrides/Gdk.py
index baa8449..e4d1209 100644
--- a/gi/overrides/Gdk.py
+++ b/gi/overrides/Gdk.py
@@ -77,6 +77,7 @@ class Color(Gdk.Color):
                      int(green * Color.MAX_VALUE),
                      int(blue * Color.MAX_VALUE))
 
+
 Color = override(Color)
 __all__.append('Color')
 
@@ -243,6 +244,7 @@ class Event(Gdk.Event):
         base_repr = Gdk.Event.__repr__(self).strip("><")
         return "<%s type=%r>" % (base_repr, self.type)
 
+
 Event = override(Event)
 __all__.append('Event')
 
@@ -312,6 +314,7 @@ class DragContext(Gdk.DragContext):
         Gtk = get_introspection_module('Gtk')
         Gtk.drag_finish(self, success, del_, time)
 
+
 DragContext = override(DragContext)
 __all__.append('DragContext')
 
diff --git a/gi/overrides/Gio.py b/gi/overrides/Gio.py
index e646821..bb320a5 100644
--- a/gi/overrides/Gio.py
+++ b/gi/overrides/Gio.py
@@ -116,6 +116,7 @@ class Settings(Gio.Settings):
     def keys(self):
         return self.list_keys()
 
+
 Settings = override(Settings)
 __all__.append('Settings')
 
@@ -235,5 +236,6 @@ class DBusProxy(Gio.DBusProxy):
     def __getattr__(self, name):
         return _DBusProxyMethodCall(self, name)
 
+
 DBusProxy = override(DBusProxy)
 __all__.append('DBusProxy')
diff --git a/gi/overrides/Gtk.py b/gi/overrides/Gtk.py
index 47ae4e5..c04f702 100644
--- a/gi/overrides/Gtk.py
+++ b/gi/overrides/Gtk.py
@@ -53,6 +53,7 @@ python module to use with Gtk 2.0"
 class PyGTKDeprecationWarning(PyGIDeprecationWarning):
     pass
 
+
 __all__.append('PyGTKDeprecationWarning')
 
 
@@ -69,6 +70,7 @@ def _construct_target_list(targets):
         target_entries.append(entry)
     return target_entries
 
+
 __all__.append('_construct_target_list')
 
 
@@ -404,6 +406,7 @@ if Gtk._version in ("2.0", "3.0"):
 class ComboBox(Gtk.ComboBox, Container):
     get_active_iter = strip_boolean_result(Gtk.ComboBox.get_active_iter)
 
+
 ComboBox = override(ComboBox)
 __all__.append('ComboBox')
 
@@ -413,6 +416,7 @@ class Box(Gtk.Box):
                                arg_names=('homogeneous', 'spacing'),
                                category=PyGTKDeprecationWarning)
 
+
 Box = override(Box)
 __all__.append('Box')
 
@@ -423,6 +427,7 @@ class SizeGroup(Gtk.SizeGroup):
                                deprecated_defaults={'mode': Gtk.SizeGroupMode.VERTICAL},
                                category=PyGTKDeprecationWarning)
 
+
 SizeGroup = override(SizeGroup)
 __all__.append('SizeGroup')
 
@@ -432,6 +437,7 @@ class MenuItem(Gtk.MenuItem):
                                arg_names=('label',),
                                category=PyGTKDeprecationWarning)
 
+
 MenuItem = override(MenuItem)
 __all__.append('MenuItem')
 
@@ -467,6 +473,7 @@ class Builder(Gtk.Builder):
 
         return Gtk.Builder.add_objects_from_string(self, buffer, length, object_ids)
 
+
 Builder = override(Builder)
 __all__.append('Builder')
 
@@ -480,6 +487,7 @@ class Window(Gtk.Window):
                                arg_names=('type',),
                                category=PyGTKDeprecationWarning)
 
+
 Window = override(Window)
 __all__.append('Window')
 
@@ -566,6 +574,7 @@ class Dialog(Gtk.Dialog, Container):
         except (IndexError):
             raise TypeError('Must pass an even number of arguments')
 
+
 Dialog = override(Dialog)
 __all__.append('Dialog')
 
@@ -586,6 +595,7 @@ class MessageDialog(Gtk.MessageDialog, Dialog):
         self.set_property('secondary-use-markup', True)
         self.set_property('secondary-text', message_format)
 
+
 MessageDialog = override(MessageDialog)
 __all__.append('MessageDialog')
 
@@ -605,6 +615,7 @@ class FileChooserDialog(Gtk.FileChooserDialog):
                                arg_names=('title', 'parent', 'action', 'buttons'),
                                category=PyGTKDeprecationWarning)
 
+
 FileChooserDialog = override(FileChooserDialog)
 __all__.append('FileChooserDialog')
 
@@ -627,6 +638,7 @@ class RecentChooserDialog(Gtk.RecentChooserDialog):
                                deprecated_aliases={'recent_manager': 'manager'},
                                category=PyGTKDeprecationWarning)
 
+
 RecentChooserDialog = override(RecentChooserDialog)
 __all__.append('RecentChooserDialog')
 
@@ -640,6 +652,7 @@ class IconView(Gtk.IconView):
     get_visible_range = strip_boolean_result(Gtk.IconView.get_visible_range)
     get_dest_item_at_pos = strip_boolean_result(Gtk.IconView.get_dest_item_at_pos)
 
+
 IconView = override(IconView)
 __all__.append('IconView')
 
@@ -649,6 +662,7 @@ class ToolButton(Gtk.ToolButton):
                                arg_names=('stock_id',),
                                category=PyGTKDeprecationWarning)
 
+
 ToolButton = override(ToolButton)
 __all__.append('ToolButton')
 
@@ -656,6 +670,7 @@ __all__.append('ToolButton')
 class IMContext(Gtk.IMContext):
     get_surrounding = strip_boolean_result(Gtk.IMContext.get_surrounding)
 
+
 IMContext = override(IMContext)
 __all__.append('IMContext')
 
@@ -663,6 +678,7 @@ __all__.append('IMContext')
 class RecentInfo(Gtk.RecentInfo):
     get_application_info = strip_boolean_result(Gtk.RecentInfo.get_application_info)
 
+
 RecentInfo = override(RecentInfo)
 __all__.append('RecentInfo')
 
@@ -750,6 +766,7 @@ class TextBuffer(Gtk.TextBuffer):
 
     get_selection_bounds = strip_boolean_result(Gtk.TextBuffer.get_selection_bounds, fail_ret=())
 
+
 TextBuffer = override(TextBuffer)
 __all__.append('TextBuffer')
 
@@ -758,6 +775,7 @@ class TextIter(Gtk.TextIter):
     forward_search = strip_boolean_result(Gtk.TextIter.forward_search)
     backward_search = strip_boolean_result(Gtk.TextIter.backward_search)
 
+
 TextIter = override(TextIter)
 __all__.append('TextIter')
 
@@ -924,6 +942,7 @@ class TreeSortable(Gtk.TreeSortable, ):
     def set_default_sort_func(self, sort_func, user_data=None):
         super(TreeSortable, self).set_default_sort_func(sort_func, user_data)
 
+
 TreeSortable = override(TreeSortable)
 __all__.append('TreeSortable')
 
@@ -933,6 +952,7 @@ class TreeModelSort(Gtk.TreeModelSort):
                                arg_names=('model',),
                                category=PyGTKDeprecationWarning)
 
+
 TreeModelSort = override(TreeModelSort)
 __all__.append('TreeModelSort')
 
@@ -1017,6 +1037,7 @@ class ListStore(Gtk.ListStore, TreeModel, TreeSortable):
             else:
                 raise TypeError('Argument list must be in the form of (column, value, ...), ((columns,...), 
(values, ...)) or {column: value}.  No -1 termination is needed.')
 
+
 ListStore = override(ListStore)
 __all__.append('ListStore')
 
@@ -1123,6 +1144,7 @@ class TreeModelRow(object):
         child_iter = self.model.iter_children(self.iter)
         return TreeModelRowIter(self.model, child_iter)
 
+
 __all__.append('TreeModelRow')
 
 
@@ -1145,6 +1167,7 @@ class TreeModelRowIter(object):
     def __iter__(self):
         return self
 
+
 __all__.append('TreeModelRowIter')
 
 
@@ -1196,6 +1219,7 @@ class TreePath(Gtk.TreePath):
     def __getitem__(self, index):
         return self.get_indices()[index]
 
+
 TreePath = override(TreePath)
 __all__.append('TreePath')
 
@@ -1275,6 +1299,7 @@ class TreeStore(Gtk.TreeStore, TreeModel, TreeSortable):
             else:
                 raise TypeError('Argument list must be in the form of (column, value, ...), ((columns,...), 
(values, ...)) or {column: value}.  No -1 termination is needed.')
 
+
 TreeStore = override(TreeStore)
 __all__.append('TreeStore')
 
@@ -1321,6 +1346,7 @@ class TreeView(Gtk.TreeView, Container):
         self.insert_column(column, position)
         column.set_attributes(cell, **kwargs)
 
+
 TreeView = override(TreeView)
 __all__.append('TreeView')
 
@@ -1402,6 +1428,7 @@ class Button(Gtk.Button, Container):
         else:
             self._init(*args, **kwargs)
 
+
 Button = override(Button)
 __all__.append('Button')
 
@@ -1411,6 +1438,7 @@ class LinkButton(Gtk.LinkButton):
                                arg_names=('uri', 'label'),
                                category=PyGTKDeprecationWarning)
 
+
 LinkButton = override(LinkButton)
 __all__.append('LinkButton')
 
@@ -1420,6 +1448,7 @@ class Label(Gtk.Label):
                                arg_names=('label',),
                                category=PyGTKDeprecationWarning)
 
+
 Label = override(Label)
 __all__.append('Label')
 
@@ -1442,6 +1471,7 @@ class Adjustment(Gtk.Adjustment):
         if 'value' in kwargs:
             self.set_value(kwargs['value'])
 
+
 Adjustment = override(Adjustment)
 __all__.append('Adjustment')
 
@@ -1465,6 +1495,7 @@ class ScrolledWindow(Gtk.ScrolledWindow):
                                arg_names=('hadjustment', 'vadjustment'),
                                category=PyGTKDeprecationWarning)
 
+
 ScrolledWindow = override(ScrolledWindow)
 __all__.append('ScrolledWindow')
 
@@ -1494,6 +1525,7 @@ class Paned(Gtk.Paned):
     def pack2(self, child, resize=True, shrink=True):
         super(Paned, self).pack2(child, resize, shrink)
 
+
 Paned = override(Paned)
 __all__.append('Paned')
 
@@ -1530,6 +1562,7 @@ class Viewport(Gtk.Viewport):
                                arg_names=('hadjustment', 'vadjustment'),
                                category=PyGTKDeprecationWarning)
 
+
 Viewport = override(Viewport)
 __all__.append('Viewport')
 
@@ -1543,6 +1576,7 @@ class TreeModelFilter(Gtk.TreeModelFilter):
         iter = self.convert_iter_to_child_iter(iter)
         self.get_model().set_value(iter, column, value)
 
+
 TreeModelFilter = override(TreeModelFilter)
 __all__.append('TreeModelFilter')
 
@@ -1560,6 +1594,7 @@ _Gtk_main_quit = Gtk.main_quit
 def main_quit(*args):
     _Gtk_main_quit()
 
+
 if Gtk._version in ("2.0", "3.0"):
     stock_lookup = strip_boolean_result(Gtk.stock_lookup)
     __all__.append('stock_lookup')
diff --git a/gi/overrides/Pango.py b/gi/overrides/Pango.py
index 365e47b..067a628 100644
--- a/gi/overrides/Pango.py
+++ b/gi/overrides/Pango.py
@@ -37,6 +37,7 @@ class FontDescription(Pango.FontDescription):
     def __init__(self, *args, **kwargs):
         return super(FontDescription, self).__init__()
 
+
 FontDescription = override(FontDescription)
 __all__.append('FontDescription')
 
@@ -49,5 +50,6 @@ class Layout(Pango.Layout):
     def set_markup(self, text, length=-1):
         super(Layout, self).set_markup(text, length)
 
+
 Layout = override(Layout)
 __all__.append('Layout')
diff --git a/gi/types.py b/gi/types.py
index 8acbcc2..9d3cb0c 100644
--- a/gi/types.py
+++ b/gi/types.py
@@ -204,6 +204,7 @@ class _GObjectMetaBase(type):
 
         _gobject.type_register(cls, namespace.get('__gtype_name__'))
 
+
 _gobject._install_metaclass(_GObjectMetaBase)
 
 
diff --git a/pygtkcompat/pygtkcompat.py b/pygtkcompat/pygtkcompat.py
index e976344..fd651f5 100644
--- a/pygtkcompat/pygtkcompat.py
+++ b/pygtkcompat/pygtkcompat.py
@@ -99,6 +99,7 @@ def enable():
     from gi.repository import Gio
     sys.modules['gio'] = Gio
 
+
 _unset = object()
 
 
diff --git a/tests/test_generictreemodel.py b/tests/test_generictreemodel.py
index cb248d7..30ae125 100644
--- a/tests/test_generictreemodel.py
+++ b/tests/test_generictreemodel.py
@@ -415,5 +415,6 @@ class TestReturnsAfterError(unittest.TestCase):
             res = self.model.iter_parent(child)
         self.assertEqual(res, None)
 
+
 if __name__ == '__main__':
     unittest.main()
diff --git a/tests/test_interface.py b/tests/test_interface.py
index dd01af8..ba20cb4 100644
--- a/tests/test_interface.py
+++ b/tests/test_interface.py
@@ -20,6 +20,8 @@ class MyUnknown(Unknown, testhelper.Interface):
     def do_iface_method(self):
         self.called = True
         Unknown.do_iface_method(self)
+
+
 GObject.type_register(MyUnknown)
 
 
@@ -32,6 +34,8 @@ class MyObject(GObject.GObject, testhelper.Interface):
 
     def do_iface_method(self):
         self.called = True
+
+
 GObject.type_register(MyObject)
 
 
diff --git a/tests/test_iochannel.py b/tests/test_iochannel.py
index aa130ec..5980a66 100644
--- a/tests/test_iochannel.py
+++ b/tests/test_iochannel.py
@@ -423,5 +423,6 @@ second line
             self.assertEqual(GLib.IOFlags.IS_SEEKABLE, GLib.IO_FLAG_IS_SEEKABLE)
             self.assertEqual(GLib.IOStatus.NORMAL, GLib.IO_STATUS_NORMAL)
 
+
 if __name__ == '__main__':
     unittest.main()
diff --git a/tests/test_overrides_gtk.py b/tests/test_overrides_gtk.py
index f47c63b..6562413 100644
--- a/tests/test_overrides_gtk.py
+++ b/tests/test_overrides_gtk.py
@@ -76,8 +76,8 @@ class TestGtk(unittest.TestCase):
         self.assertTrue(label2 in box)
         self.assertEqual(len(box), 2)
         self.assertTrue(box)
-        l = [x for x in box]
-        self.assertEqual(l, [label, label2])
+        labels = [x for x in box]
+        self.assertEqual(labels, [label, label2])
 
     def test_actions(self):
         self.assertEqual(Gtk.Action, gi.overrides.Gtk.Action)
@@ -615,9 +615,9 @@ class TestGtk(unittest.TestCase):
         self.assertEqual(viewport.props.hadjustment, hadjustment)
 
     def test_stock_lookup(self):
-        l = Gtk.stock_lookup('gtk-ok')
-        self.assertEqual(type(l), Gtk.StockItem)
-        self.assertEqual(l.stock_id, 'gtk-ok')
+        stock_item = Gtk.stock_lookup('gtk-ok')
+        self.assertEqual(type(stock_item), Gtk.StockItem)
+        self.assertEqual(stock_item.stock_id, 'gtk-ok')
         self.assertEqual(Gtk.stock_lookup('nosuchthing'), None)
 
     def test_gtk_main(self):
diff --git a/tests/test_properties.py b/tests/test_properties.py
index ab71000..109fdb9 100644
--- a/tests/test_properties.py
+++ b/tests/test_properties.py
@@ -1137,9 +1137,9 @@ class CPropertiesTestBase(object):
     def test_boxed_glist(self):
         self.assertEqual(self.get_prop(self.obj, 'some-boxed-glist'), [])
 
-        l = [GLib.MININT, 42, GLib.MAXINT]
-        self.set_prop(self.obj, 'some-boxed-glist', l)
-        self.assertEqual(self.get_prop(self.obj, 'some-boxed-glist'), l)
+        list_ = [GLib.MININT, 42, GLib.MAXINT]
+        self.set_prop(self.obj, 'some-boxed-glist', list_)
+        self.assertEqual(self.get_prop(self.obj, 'some-boxed-glist'), list_)
         self.set_prop(self.obj, 'some-boxed-glist', [])
         self.assertEqual(self.get_prop(self.obj, 'some-boxed-glist'), [])
 
@@ -1158,9 +1158,9 @@ class CPropertiesTestBase(object):
 
     @unittest.expectedFailure
     def test_boxed_glist_ctor(self):
-        l = [GLib.MININT, 42, GLib.MAXINT]
-        obj = GIMarshallingTests.PropertiesObject(some_boxed_glist=l)
-        self.assertEqual(self.get_prop(obj, 'some-boxed-glist'), l)
+        list_ = [GLib.MININT, 42, GLib.MAXINT]
+        obj = GIMarshallingTests.PropertiesObject(some_boxed_glist=list_)
+        self.assertEqual(self.get_prop(obj, 'some-boxed-glist'), list_)
 
     def test_variant(self):
         self.assertEqual(self.get_prop(self.obj, 'some-variant'), None)
diff --git a/tests/test_signal.py b/tests/test_signal.py
index 92db5a0..91607f9 100644
--- a/tests/test_signal.py
+++ b/tests/test_signal.py
@@ -659,6 +659,7 @@ class _TestCMarshaller:
         self.assertEqual(self.obj.emit("test-gvalue-ret", GObject.TYPE_STRING),
                          "hello")
 
+
 if 'generic-c-marshaller' in GObject.features:
     class TestCMarshaller(_TestCMarshaller, unittest.TestCase):
         pass


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