demo: pep8 fixes

The demo app now gets analyzed by pep8 since it was moved to the examples.

28 files changed, 700 insertions, 670 deletions

diff --git a/examples/demo/demos/Css/css_accordion.py b/examples/demo/demos/Css/css_accordion.py
index 7c6f539c..2b7cddc0 100644
--- a/examples/demo/demos/Css/css_accordion.py
+++ b/examples/demo/demos/Css/css_accordion.py
@@ -67,6 +67,7 @@ def main(demoapp=None):
     CSSAccordionApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     import os
     base_path = os.path.abspath(os.path.dirname(__file__))
diff --git a/examples/demo/demos/Entry/entry_buffer.py b/examples/demo/demos/Entry/entry_buffer.py
index fbfc3017..f0c04a41 100644
--- a/examples/demo/demos/Entry/entry_buffer.py
+++ b/examples/demo/demos/Entry/entry_buffer.py
@@ -67,5 +67,6 @@ def main(demoapp=None):
     EntryBufferApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/Entry/entry_completion.py b/examples/demo/demos/Entry/entry_completion.py
index 2a221858..107c45a3 100644
--- a/examples/demo/demos/Entry/entry_completion.py
+++ b/examples/demo/demos/Entry/entry_completion.py
@@ -81,5 +81,6 @@ def main(demoapp=None):
     EntryBufferApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/Entry/search_entry.py b/examples/demo/demos/Entry/search_entry.py
index bdf4f57d..793b81a6 100644
--- a/examples/demo/demos/Entry/search_entry.py
+++ b/examples/demo/demos/Entry/search_entry.py
@@ -249,5 +249,6 @@ def main(demoapp=None):
     SearchboxApp(demoapp)
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/IconView/iconviewbasics.py b/examples/demo/demos/IconView/iconviewbasics.py
index ea1ceb41..8cb71a88 100644
--- a/examples/demo/demos/IconView/iconviewbasics.py
+++ b/examples/demo/demos/IconView/iconviewbasics.py
@@ -216,5 +216,6 @@ def main(demoapp=None):
     IconViewApp(demoapp)
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/IconView/iconviewedit.py b/examples/demo/demos/IconView/iconviewedit.py
index 44f3ffea..85dfa939 100644
--- a/examples/demo/demos/IconView/iconviewedit.py
+++ b/examples/demo/demos/IconView/iconviewedit.py
@@ -94,5 +94,6 @@ def main(demoapp=None):
     IconviewEditApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/TreeView/liststore.py b/examples/demo/demos/TreeView/liststore.py
index bad99d3a..4b3daa18 100644
--- a/examples/demo/demos/TreeView/liststore.py
+++ b/examples/demo/demos/TreeView/liststore.py
@@ -37,6 +37,7 @@ class Bug:
         self.severity = severity
         self.description = description
 
+
 # initial data we use to fill in the store
 data = [Bug(False, 60482, "Normal", "scrollable notebooks and hidden tabs"),
         Bug(False, 60620, "Critical", "gdk_window_clear_area (gdkwindow-win32.c) is not thread-safe"),
@@ -206,5 +207,6 @@ def main(demoapp=None):
     ListStoreApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/TreeView/treemodel_filelist.py b/examples/demo/demos/TreeView/treemodel_filelist.py
index f3c7565c..f011a470 100644
--- a/examples/demo/demos/TreeView/treemodel_filelist.py
+++ b/examples/demo/demos/TreeView/treemodel_filelist.py
@@ -230,5 +230,6 @@ def main(demoapp=None):
     demo
     gtk.main()
 
+
 if __name__ == "__main__":
     main()
diff --git a/examples/demo/demos/TreeView/treemodel_filetree.py b/examples/demo/demos/TreeView/treemodel_filetree.py
index 0549436f..3b43190f 100644
--- a/examples/demo/demos/TreeView/treemodel_filetree.py
+++ b/examples/demo/demos/TreeView/treemodel_filetree.py
@@ -275,5 +275,6 @@ def main(demoapp=None):
     demo
     gtk.main()
 
+
 if __name__ == "__main__":
     main()
diff --git a/examples/demo/demos/appwindow.py b/examples/demo/demos/appwindow.py
index 60632f12..893ecc0f 100644
--- a/examples/demo/demos/appwindow.py
+++ b/examples/demo/demos/appwindow.py
@@ -403,5 +403,6 @@ def main(demoapp=None):
     window.show_all()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/assistant.py b/examples/demo/demos/assistant.py
index b1d8720e..9e729e9b 100644
--- a/examples/demo/demos/assistant.py
+++ b/examples/demo/demos/assistant.py
@@ -130,5 +130,6 @@ def main(demoapp=None):
     AssistantApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/builder.py b/examples/demo/demos/builder.py
index c557d068..47e09a46 100644
--- a/examples/demo/demos/builder.py
+++ b/examples/demo/demos/builder.py
@@ -60,5 +60,6 @@ def main(demoapp=None):
     BuilderApp(demoapp)
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/button_box.py b/examples/demo/demos/button_box.py
index 8c9a0bf7..be94984a 100644
--- a/examples/demo/demos/button_box.py
+++ b/examples/demo/demos/button_box.py
@@ -117,5 +117,6 @@ def main(demoapp=None):
     ButtonBoxApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/clipboard.py b/examples/demo/demos/clipboard.py
index 1058d3e0..5a888284 100644
--- a/examples/demo/demos/clipboard.py
+++ b/examples/demo/demos/clipboard.py
@@ -223,5 +223,6 @@ def main(demoapp=None):
     ClipboardApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/colorselector.py b/examples/demo/demos/colorselector.py
index 3ad65eb6..d05ca527 100644
--- a/examples/demo/demos/colorselector.py
+++ b/examples/demo/demos/colorselector.py
@@ -107,5 +107,6 @@ def main(demoapp=None):
     ColorSelectorApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/combobox.py b/examples/demo/demos/combobox.py
index be70d36f..36034bac 100644
--- a/examples/demo/demos/combobox.py
+++ b/examples/demo/demos/combobox.py
@@ -314,5 +314,6 @@ def main(demoapp=None):
     ComboboxApp(demoapp)
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/dialogs.py b/examples/demo/demos/dialogs.py
index 4c3e34ad..47d68221 100644
--- a/examples/demo/demos/dialogs.py
+++ b/examples/demo/demos/dialogs.py
@@ -151,5 +151,6 @@ def main(demoapp=None):
     DialogsApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/drawingarea.py b/examples/demo/demos/drawingarea.py
index aea18b57..b04c41dd 100644
--- a/examples/demo/demos/drawingarea.py
+++ b/examples/demo/demos/drawingarea.py
@@ -87,11 +87,11 @@ class DrawingAreaApp:
 
         # Ask to receive events the drawing area doesn't normally
         # subscribe to
-        da.set_events(da.get_events()
-                      | Gdk.EventMask.LEAVE_NOTIFY_MASK
-                      | Gdk.EventMask.BUTTON_PRESS_MASK
-                      | Gdk.EventMask.POINTER_MOTION_MASK
-                      | Gdk.EventMask.POINTER_MOTION_HINT_MASK)
+        da.set_events(da.get_events() |
+                      Gdk.EventMask.LEAVE_NOTIFY_MASK |
+                      Gdk.EventMask.BUTTON_PRESS_MASK |
+                      Gdk.EventMask.POINTER_MOTION_MASK |
+                      Gdk.EventMask.POINTER_MOTION_HINT_MASK)
 
         window.show_all()
 
@@ -202,5 +202,6 @@ def main(demoapp=None):
     DrawingAreaApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/expander.py b/examples/demo/demos/expander.py
index eb5149fa..0ec149ec 100644
--- a/examples/demo/demos/expander.py
+++ b/examples/demo/demos/expander.py
@@ -57,5 +57,6 @@ def main(demoapp=None):
     ExpanderApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/flowbox.py b/examples/demo/demos/flowbox.py
index f28a7334..0485b7c0 100755
--- a/examples/demo/demos/flowbox.py
+++ b/examples/demo/demos/flowbox.py
@@ -71,680 +71,682 @@ class FlowBoxApp:
 
     def create_flowbox(self, flowbox):
         colors = [
-        'AliceBlue',
-        'AntiqueWhite',
-        'AntiqueWhite1',
-        'AntiqueWhite2',
-        'AntiqueWhite3',
-        'AntiqueWhite4',
-        'aqua',
-        'aquamarine',
-        'aquamarine1',
-        'aquamarine2',
-        'aquamarine3',
-        'aquamarine4',
-        'azure',
-        'azure1',
-        'azure2',
-        'azure3',
-        'azure4',
-        'beige',
-        'bisque',
-        'bisque1',
-        'bisque2',
-        'bisque3',
-        'bisque4',
-        'black',
-        'BlanchedAlmond',
-        'blue',
-        'blue1',
-        'blue2',
-        'blue3',
-        'blue4',
-        'BlueViolet',
-        'brown',
-        'brown1',
-        'brown2',
-        'brown3',
-        'brown4',
-        'burlywood',
-        'burlywood1',
-        'burlywood2',
-        'burlywood3',
-        'burlywood4',
-        'CadetBlue',
-        'CadetBlue1',
-        'CadetBlue2',
-        'CadetBlue3',
-        'CadetBlue4',
-        'chartreuse',
-        'chartreuse1',
-        'chartreuse2',
-        'chartreuse3',
-        'chartreuse4',
-        'chocolate',
-        'chocolate1',
-        'chocolate2',
-        'chocolate3',
-        'chocolate4',
-        'coral',
-        'coral1',
-        'coral2',
-        'coral3',
-        'coral4',
-        'CornflowerBlue',
-        'cornsilk',
-        'cornsilk1',
-        'cornsilk2',
-        'cornsilk3',
-        'cornsilk4',
-        'crimson',
-        'cyan',
-        'cyan1',
-        'cyan2',
-        'cyan3',
-        'cyan4',
-        'DarkBlue',
-        'DarkCyan',
-        'DarkGoldenrod',
-        'DarkGoldenrod1',
-        'DarkGoldenrod2',
-        'DarkGoldenrod3',
-        'DarkGoldenrod4',
-        'DarkGray',
-        'DarkGreen',
-        'DarkGrey',
-        'DarkKhaki',
-        'DarkMagenta',
-        'DarkOliveGreen',
-        'DarkOliveGreen1',
-        'DarkOliveGreen2',
-        'DarkOliveGreen3',
-        'DarkOliveGreen4',
-        'DarkOrange',
-        'DarkOrange1',
-        'DarkOrange2',
-        'DarkOrange3',
-        'DarkOrange4',
-        'DarkOrchid',
-        'DarkOrchid1',
-        'DarkOrchid2',
-        'DarkOrchid3',
-        'DarkOrchid4',
-        'DarkRed',
-        'DarkSalmon',
-        'DarkSeaGreen',
-        'DarkSeaGreen1',
-        'DarkSeaGreen2',
-        'DarkSeaGreen3',
-        'DarkSeaGreen4',
-        'DarkSlateBlue',
-        'DarkSlateGray',
-        'DarkSlateGray1',
-        'DarkSlateGray2',
-        'DarkSlateGray3',
-        'DarkSlateGray4',
-        'DarkSlateGrey',
-        'DarkTurquoise',
-        'DarkViolet',
-        'DeepPink',
-        'DeepPink1',
-        'DeepPink2',
-        'DeepPink3',
-        'DeepPink4',
-        'DeepSkyBlue',
-        'DeepSkyBlue1',
-        'DeepSkyBlue2',
-        'DeepSkyBlue3',
-        'DeepSkyBlue4',
-        'DimGray',
-        'DimGrey',
-        'DodgerBlue',
-        'DodgerBlue1',
-        'DodgerBlue2',
-        'DodgerBlue3',
-        'DodgerBlue4',
-        'firebrick',
-        'firebrick1',
-        'firebrick2',
-        'firebrick3',
-        'firebrick4',
-        'FloralWhite',
-        'ForestGreen',
-        'fuchsia',
-        'gainsboro',
-        'GhostWhite',
-        'gold',
-        'gold1',
-        'gold2',
-        'gold3',
-        'gold4',
-        'goldenrod',
-        'goldenrod1',
-        'goldenrod2',
-        'goldenrod3',
-        'goldenrod4',
-        'gray',
-        'gray0',
-        'gray1',
-        'gray2',
-        'gray3',
-        'gray4',
-        'gray5',
-        'gray6',
-        'gray7',
-        'gray8',
-        'gray9',
-        'gray10',
-        'gray11',
-        'gray12',
-        'gray13',
-        'gray14',
-        'gray15',
-        'gray16',
-        'gray17',
-        'gray18',
-        'gray19',
-        'gray20',
-        'gray21',
-        'gray22',
-        'gray23',
-        'gray24',
-        'gray25',
-        'gray26',
-        'gray27',
-        'gray28',
-        'gray29',
-        'gray30',
-        'gray31',
-        'gray32',
-        'gray33',
-        'gray34',
-        'gray35',
-        'gray36',
-        'gray37',
-        'gray38',
-        'gray39',
-        'gray40',
-        'gray41',
-        'gray42',
-        'gray43',
-        'gray44',
-        'gray45',
-        'gray46',
-        'gray47',
-        'gray48',
-        'gray49',
-        'gray50',
-        'gray51',
-        'gray52',
-        'gray53',
-        'gray54',
-        'gray55',
-        'gray56',
-        'gray57',
-        'gray58',
-        'gray59',
-        'gray60',
-        'gray61',
-        'gray62',
-        'gray63',
-        'gray64',
-        'gray65',
-        'gray66',
-        'gray67',
-        'gray68',
-        'gray69',
-        'gray70',
-        'gray71',
-        'gray72',
-        'gray73',
-        'gray74',
-        'gray75',
-        'gray76',
-        'gray77',
-        'gray78',
-        'gray79',
-        'gray80',
-        'gray81',
-        'gray82',
-        'gray83',
-        'gray84',
-        'gray85',
-        'gray86',
-        'gray87',
-        'gray88',
-        'gray89',
-        'gray90',
-        'gray91',
-        'gray92',
-        'gray93',
-        'gray94',
-        'gray95',
-        'gray96',
-        'gray97',
-        'gray98',
-        'gray99',
-        'gray100',
-        'green',
-        'green1',
-        'green2',
-        'green3',
-        'green4',
-        'GreenYellow',
-        'grey',
-        'grey0',
-        'grey1',
-        'grey2',
-        'grey3',
-        'grey4',
-        'grey5',
-        'grey6',
-        'grey7',
-        'grey8',
-        'grey9',
-        'grey10',
-        'grey11',
-        'grey12',
-        'grey13',
-        'grey14',
-        'grey15',
-        'grey16',
-        'grey17',
-        'grey18',
-        'grey19',
-        'grey20',
-        'grey21',
-        'grey22',
-        'grey23',
-        'grey24',
-        'grey25',
-        'grey26',
-        'grey27',
-        'grey28',
-        'grey29',
-        'grey30',
-        'grey31',
-        'grey32',
-        'grey33',
-        'grey34',
-        'grey35',
-        'grey36',
-        'grey37',
-        'grey38',
-        'grey39',
-        'grey40',
-        'grey41',
-        'grey42',
-        'grey43',
-        'grey44',
-        'grey45',
-        'grey46',
-        'grey47',
-        'grey48',
-        'grey49',
-        'grey50',
-        'grey51',
-        'grey52',
-        'grey53',
-        'grey54',
-        'grey55',
-        'grey56',
-        'grey57',
-        'grey58',
-        'grey59',
-        'grey60',
-        'grey61',
-        'grey62',
-        'grey63',
-        'grey64',
-        'grey65',
-        'grey66',
-        'grey67',
-        'grey68',
-        'grey69',
-        'grey70',
-        'grey71',
-        'grey72',
-        'grey73',
-        'grey74',
-        'grey75',
-        'grey76',
-        'grey77',
-        'grey78',
-        'grey79',
-        'grey80',
-        'grey81',
-        'grey82',
-        'grey83',
-        'grey84',
-        'grey85',
-        'grey86',
-        'grey87',
-        'grey88',
-        'grey89',
-        'grey90',
-        'grey91',
-        'grey92',
-        'grey93',
-        'grey94',
-        'grey95',
-        'grey96',
-        'grey97',
-        'grey98',
-        'grey99',
-        'grey100',
-        'honeydew',
-        'honeydew1',
-        'honeydew2',
-        'honeydew3',
-        'honeydew4',
-        'HotPink',
-        'HotPink1',
-        'HotPink2',
-        'HotPink3',
-        'HotPink4',
-        'IndianRed',
-        'IndianRed1',
-        'IndianRed2',
-        'IndianRed3',
-        'IndianRed4',
-        'indigo',
-        'ivory',
-        'ivory1',
-        'ivory2',
-        'ivory3',
-        'ivory4',
-        'khaki',
-        'khaki1',
-        'khaki2',
-        'khaki3',
-        'khaki4',
-        'lavender',
-        'LavenderBlush',
-        'LavenderBlush1',
-        'LavenderBlush2',
-        'LavenderBlush3',
-        'LavenderBlush4',
-        'LawnGreen',
-        'LemonChiffon',
-        'LemonChiffon1',
-        'LemonChiffon2',
-        'LemonChiffon3',
-        'LemonChiffon4',
-        'LightBlue',
-        'LightBlue1',
-        'LightBlue2',
-        'LightBlue3',
-        'LightBlue4',
-        'LightCoral',
-        'LightCyan',
-        'LightCyan1',
-        'LightCyan2',
-        'LightCyan3',
-        'LightCyan4',
-        'LightGoldenrod',
-        'LightGoldenrod1',
-        'LightGoldenrod2',
-        'LightGoldenrod3',
-        'LightGoldenrod4',
-        'LightGoldenrodYellow',
-        'LightGray',
-        'LightGreen',
-        'LightGrey',
-        'LightPink',
-        'LightPink1',
-        'LightPink2',
-        'LightPink3',
-        'LightPink4',
-        'LightSalmon',
-        'LightSalmon1',
-        'LightSalmon2',
-        'LightSalmon3',
-        'LightSalmon4',
-        'LightSeaGreen',
-        'LightSkyBlue',
-        'LightSkyBlue1',
-        'LightSkyBlue2',
-        'LightSkyBlue3',
-        'LightSkyBlue4',
-        'LightSlateBlue',
-        'LightSlateGray',
-        'LightSlateGrey',
-        'LightSteelBlue',
-        'LightSteelBlue1',
-        'LightSteelBlue2',
-        'LightSteelBlue3',
-        'LightSteelBlue4',
-        'LightYellow',
-        'LightYellow1',
-        'LightYellow2',
-        'LightYellow3',
-        'LightYellow4',
-        'lime',
-        'LimeGreen',
-        'linen',
-        'magenta',
-        'magenta1',
-        'magenta2',
-        'magenta3',
-        'magenta4',
-        'maroon',
-        'maroon1',
-        'maroon2',
-        'maroon3',
-        'maroon4',
-        'MediumAquamarine',
-        'MediumBlue',
-        'MediumOrchid',
-        'MediumOrchid1',
-        'MediumOrchid2',
-        'MediumOrchid3',
-        'MediumOrchid4',
-        'MediumPurple',
-        'MediumPurple1',
-        'MediumPurple2',
-        'MediumPurple3',
-        'MediumPurple4',
-        'MediumSeaGreen',
-        'MediumSlateBlue',
-        'MediumSpringGreen',
-        'MediumTurquoise',
-        'MediumVioletRed',
-        'MidnightBlue',
-        'MintCream',
-        'MistyRose',
-        'MistyRose1',
-        'MistyRose2',
-        'MistyRose3',
-        'MistyRose4',
-        'moccasin',
-        'NavajoWhite',
-        'NavajoWhite1',
-        'NavajoWhite2',
-        'NavajoWhite3',
-        'NavajoWhite4',
-        'navy',
-        'NavyBlue',
-        'OldLace',
-        'olive',
-        'OliveDrab',
-        'OliveDrab1',
-        'OliveDrab2',
-        'OliveDrab3',
-        'OliveDrab4',
-        'orange',
-        'orange1',
-        'orange2',
-        'orange3',
-        'orange4',
-        'OrangeRed',
-        'OrangeRed1',
-        'OrangeRed2',
-        'OrangeRed3',
-        'OrangeRed4',
-        'orchid',
-        'orchid1',
-        'orchid2',
-        'orchid3',
-        'orchid4',
-        'PaleGoldenrod',
-        'PaleGreen',
-        'PaleGreen1',
-        'PaleGreen2',
-        'PaleGreen3',
-        'PaleGreen4',
-        'PaleTurquoise',
-        'PaleTurquoise1',
-        'PaleTurquoise2',
-        'PaleTurquoise3',
-        'PaleTurquoise4',
-        'PaleVioletRed',
-        'PaleVioletRed1',
-        'PaleVioletRed2',
-        'PaleVioletRed3',
-        'PaleVioletRed4',
-        'PapayaWhip',
-        'PeachPuff',
-        'PeachPuff1',
-        'PeachPuff2',
-        'PeachPuff3',
-        'PeachPuff4',
-        'peru',
-        'pink',
-        'pink1',
-        'pink2',
-        'pink3',
-        'pink4',
-        'plum',
-        'plum1',
-        'plum2',
-        'plum3',
-        'plum4',
-        'PowderBlue',
-        'purple',
-        'purple1',
-        'purple2',
-        'purple3',
-        'purple4',
-        'red',
-        'red1',
-        'red2',
-        'red3',
-        'red4',
-        'RosyBrown',
-        'RosyBrown1',
-        'RosyBrown2',
-        'RosyBrown3',
-        'RosyBrown4',
-        'RoyalBlue',
-        'RoyalBlue1',
-        'RoyalBlue2',
-        'RoyalBlue3',
-        'RoyalBlue4',
-        'SaddleBrown',
-        'salmon',
-        'salmon1',
-        'salmon2',
-        'salmon3',
-        'salmon4',
-        'SandyBrown',
-        'SeaGreen',
-        'SeaGreen1',
-        'SeaGreen2',
-        'SeaGreen3',
-        'SeaGreen4',
-        'seashell',
-        'seashell1',
-        'seashell2',
-        'seashell3',
-        'seashell4',
-        'sienna',
-        'sienna1',
-        'sienna2',
-        'sienna3',
-        'sienna4',
-        'silver',
-        'SkyBlue',
-        'SkyBlue1',
-        'SkyBlue2',
-        'SkyBlue3',
-        'SkyBlue4',
-        'SlateBlue',
-        'SlateBlue1',
-        'SlateBlue2',
-        'SlateBlue3',
-        'SlateBlue4',
-        'SlateGray',
-        'SlateGray1',
-        'SlateGray2',
-        'SlateGray3',
-        'SlateGray4',
-        'SlateGrey',
-        'snow',
-        'snow1',
-        'snow2',
-        'snow3',
-        'snow4',
-        'SpringGreen',
-        'SpringGreen1',
-        'SpringGreen2',
-        'SpringGreen3',
-        'SpringGreen4',
-        'SteelBlue',
-        'SteelBlue1',
-        'SteelBlue2',
-        'SteelBlue3',
-        'SteelBlue4',
-        'tan',
-        'tan1',
-        'tan2',
-        'tan3',
-        'tan4',
-        'teal',
-        'thistle',
-        'thistle1',
-        'thistle2',
-        'thistle3',
-        'thistle4',
-        'tomato',
-        'tomato1',
-        'tomato2',
-        'tomato3',
-        'tomato4',
-        'turquoise',
-        'turquoise1',
-        'turquoise2',
-        'turquoise3',
-        'turquoise4',
-        'violet',
-        'VioletRed',
-        'VioletRed1',
-        'VioletRed2',
-        'VioletRed3',
-        'VioletRed4',
-        'wheat',
-        'wheat1',
-        'wheat2',
-        'wheat3',
-        'wheat4',
-        'white',
-        'WhiteSmoke',
-        'yellow',
-        'yellow1',
-        'yellow2',
-        'yellow3',
-        'yellow4',
-        'YellowGreen'
+            'AliceBlue',
+            'AntiqueWhite',
+            'AntiqueWhite1',
+            'AntiqueWhite2',
+            'AntiqueWhite3',
+            'AntiqueWhite4',
+            'aqua',
+            'aquamarine',
+            'aquamarine1',
+            'aquamarine2',
+            'aquamarine3',
+            'aquamarine4',
+            'azure',
+            'azure1',
+            'azure2',
+            'azure3',
+            'azure4',
+            'beige',
+            'bisque',
+            'bisque1',
+            'bisque2',
+            'bisque3',
+            'bisque4',
+            'black',
+            'BlanchedAlmond',
+            'blue',
+            'blue1',
+            'blue2',
+            'blue3',
+            'blue4',
+            'BlueViolet',
+            'brown',
+            'brown1',
+            'brown2',
+            'brown3',
+            'brown4',
+            'burlywood',
+            'burlywood1',
+            'burlywood2',
+            'burlywood3',
+            'burlywood4',
+            'CadetBlue',
+            'CadetBlue1',
+            'CadetBlue2',
+            'CadetBlue3',
+            'CadetBlue4',
+            'chartreuse',
+            'chartreuse1',
+            'chartreuse2',
+            'chartreuse3',
+            'chartreuse4',
+            'chocolate',
+            'chocolate1',
+            'chocolate2',
+            'chocolate3',
+            'chocolate4',
+            'coral',
+            'coral1',
+            'coral2',
+            'coral3',
+            'coral4',
+            'CornflowerBlue',
+            'cornsilk',
+            'cornsilk1',
+            'cornsilk2',
+            'cornsilk3',
+            'cornsilk4',
+            'crimson',
+            'cyan',
+            'cyan1',
+            'cyan2',
+            'cyan3',
+            'cyan4',
+            'DarkBlue',
+            'DarkCyan',
+            'DarkGoldenrod',
+            'DarkGoldenrod1',
+            'DarkGoldenrod2',
+            'DarkGoldenrod3',
+            'DarkGoldenrod4',
+            'DarkGray',
+            'DarkGreen',
+            'DarkGrey',
+            'DarkKhaki',
+            'DarkMagenta',
+            'DarkOliveGreen',
+            'DarkOliveGreen1',
+            'DarkOliveGreen2',
+            'DarkOliveGreen3',
+            'DarkOliveGreen4',
+            'DarkOrange',
+            'DarkOrange1',
+            'DarkOrange2',
+            'DarkOrange3',
+            'DarkOrange4',
+            'DarkOrchid',
+            'DarkOrchid1',
+            'DarkOrchid2',
+            'DarkOrchid3',
+            'DarkOrchid4',
+            'DarkRed',
+            'DarkSalmon',
+            'DarkSeaGreen',
+            'DarkSeaGreen1',
+            'DarkSeaGreen2',
+            'DarkSeaGreen3',
+            'DarkSeaGreen4',
+            'DarkSlateBlue',
+            'DarkSlateGray',
+            'DarkSlateGray1',
+            'DarkSlateGray2',
+            'DarkSlateGray3',
+            'DarkSlateGray4',
+            'DarkSlateGrey',
+            'DarkTurquoise',
+            'DarkViolet',
+            'DeepPink',
+            'DeepPink1',
+            'DeepPink2',
+            'DeepPink3',
+            'DeepPink4',
+            'DeepSkyBlue',
+            'DeepSkyBlue1',
+            'DeepSkyBlue2',
+            'DeepSkyBlue3',
+            'DeepSkyBlue4',
+            'DimGray',
+            'DimGrey',
+            'DodgerBlue',
+            'DodgerBlue1',
+            'DodgerBlue2',
+            'DodgerBlue3',
+            'DodgerBlue4',
+            'firebrick',
+            'firebrick1',
+            'firebrick2',
+            'firebrick3',
+            'firebrick4',
+            'FloralWhite',
+            'ForestGreen',
+            'fuchsia',
+            'gainsboro',
+            'GhostWhite',
+            'gold',
+            'gold1',
+            'gold2',
+            'gold3',
+            'gold4',
+            'goldenrod',
+            'goldenrod1',
+            'goldenrod2',
+            'goldenrod3',
+            'goldenrod4',
+            'gray',
+            'gray0',
+            'gray1',
+            'gray2',
+            'gray3',
+            'gray4',
+            'gray5',
+            'gray6',
+            'gray7',
+            'gray8',
+            'gray9',
+            'gray10',
+            'gray11',
+            'gray12',
+            'gray13',
+            'gray14',
+            'gray15',
+            'gray16',
+            'gray17',
+            'gray18',
+            'gray19',
+            'gray20',
+            'gray21',
+            'gray22',
+            'gray23',
+            'gray24',
+            'gray25',
+            'gray26',
+            'gray27',
+            'gray28',
+            'gray29',
+            'gray30',
+            'gray31',
+            'gray32',
+            'gray33',
+            'gray34',
+            'gray35',
+            'gray36',
+            'gray37',
+            'gray38',
+            'gray39',
+            'gray40',
+            'gray41',
+            'gray42',
+            'gray43',
+            'gray44',
+            'gray45',
+            'gray46',
+            'gray47',
+            'gray48',
+            'gray49',
+            'gray50',
+            'gray51',
+            'gray52',
+            'gray53',
+            'gray54',
+            'gray55',
+            'gray56',
+            'gray57',
+            'gray58',
+            'gray59',
+            'gray60',
+            'gray61',
+            'gray62',
+            'gray63',
+            'gray64',
+            'gray65',
+            'gray66',
+            'gray67',
+            'gray68',
+            'gray69',
+            'gray70',
+            'gray71',
+            'gray72',
+            'gray73',
+            'gray74',
+            'gray75',
+            'gray76',
+            'gray77',
+            'gray78',
+            'gray79',
+            'gray80',
+            'gray81',
+            'gray82',
+            'gray83',
+            'gray84',
+            'gray85',
+            'gray86',
+            'gray87',
+            'gray88',
+            'gray89',
+            'gray90',
+            'gray91',
+            'gray92',
+            'gray93',
+            'gray94',
+            'gray95',
+            'gray96',
+            'gray97',
+            'gray98',
+            'gray99',
+            'gray100',
+            'green',
+            'green1',
+            'green2',
+            'green3',
+            'green4',
+            'GreenYellow',
+            'grey',
+            'grey0',
+            'grey1',
+            'grey2',
+            'grey3',
+            'grey4',
+            'grey5',
+            'grey6',
+            'grey7',
+            'grey8',
+            'grey9',
+            'grey10',
+            'grey11',
+            'grey12',
+            'grey13',
+            'grey14',
+            'grey15',
+            'grey16',
+            'grey17',
+            'grey18',
+            'grey19',
+            'grey20',
+            'grey21',
+            'grey22',
+            'grey23',
+            'grey24',
+            'grey25',
+            'grey26',
+            'grey27',
+            'grey28',
+            'grey29',
+            'grey30',
+            'grey31',
+            'grey32',
+            'grey33',
+            'grey34',
+            'grey35',
+            'grey36',
+            'grey37',
+            'grey38',
+            'grey39',
+            'grey40',
+            'grey41',
+            'grey42',
+            'grey43',
+            'grey44',
+            'grey45',
+            'grey46',
+            'grey47',
+            'grey48',
+            'grey49',
+            'grey50',
+            'grey51',
+            'grey52',
+            'grey53',
+            'grey54',
+            'grey55',
+            'grey56',
+            'grey57',
+            'grey58',
+            'grey59',
+            'grey60',
+            'grey61',
+            'grey62',
+            'grey63',
+            'grey64',
+            'grey65',
+            'grey66',
+            'grey67',
+            'grey68',
+            'grey69',
+            'grey70',
+            'grey71',
+            'grey72',
+            'grey73',
+            'grey74',
+            'grey75',
+            'grey76',
+            'grey77',
+            'grey78',
+            'grey79',
+            'grey80',
+            'grey81',
+            'grey82',
+            'grey83',
+            'grey84',
+            'grey85',
+            'grey86',
+            'grey87',
+            'grey88',
+            'grey89',
+            'grey90',
+            'grey91',
+            'grey92',
+            'grey93',
+            'grey94',
+            'grey95',
+            'grey96',
+            'grey97',
+            'grey98',
+            'grey99',
+            'grey100',
+            'honeydew',
+            'honeydew1',
+            'honeydew2',
+            'honeydew3',
+            'honeydew4',
+            'HotPink',
+            'HotPink1',
+            'HotPink2',
+            'HotPink3',
+            'HotPink4',
+            'IndianRed',
+            'IndianRed1',
+            'IndianRed2',
+            'IndianRed3',
+            'IndianRed4',
+            'indigo',
+            'ivory',
+            'ivory1',
+            'ivory2',
+            'ivory3',
+            'ivory4',
+            'khaki',
+            'khaki1',
+            'khaki2',
+            'khaki3',
+            'khaki4',
+            'lavender',
+            'LavenderBlush',
+            'LavenderBlush1',
+            'LavenderBlush2',
+            'LavenderBlush3',
+            'LavenderBlush4',
+            'LawnGreen',
+            'LemonChiffon',
+            'LemonChiffon1',
+            'LemonChiffon2',
+            'LemonChiffon3',
+            'LemonChiffon4',
+            'LightBlue',
+            'LightBlue1',
+            'LightBlue2',
+            'LightBlue3',
+            'LightBlue4',
+            'LightCoral',
+            'LightCyan',
+            'LightCyan1',
+            'LightCyan2',
+            'LightCyan3',
+            'LightCyan4',
+            'LightGoldenrod',
+            'LightGoldenrod1',
+            'LightGoldenrod2',
+            'LightGoldenrod3',
+            'LightGoldenrod4',
+            'LightGoldenrodYellow',
+            'LightGray',
+            'LightGreen',
+            'LightGrey',
+            'LightPink',
+            'LightPink1',
+            'LightPink2',
+            'LightPink3',
+            'LightPink4',
+            'LightSalmon',
+            'LightSalmon1',
+            'LightSalmon2',
+            'LightSalmon3',
+            'LightSalmon4',
+            'LightSeaGreen',
+            'LightSkyBlue',
+            'LightSkyBlue1',
+            'LightSkyBlue2',
+            'LightSkyBlue3',
+            'LightSkyBlue4',
+            'LightSlateBlue',
+            'LightSlateGray',
+            'LightSlateGrey',
+            'LightSteelBlue',
+            'LightSteelBlue1',
+            'LightSteelBlue2',
+            'LightSteelBlue3',
+            'LightSteelBlue4',
+            'LightYellow',
+            'LightYellow1',
+            'LightYellow2',
+            'LightYellow3',
+            'LightYellow4',
+            'lime',
+            'LimeGreen',
+            'linen',
+            'magenta',
+            'magenta1',
+            'magenta2',
+            'magenta3',
+            'magenta4',
+            'maroon',
+            'maroon1',
+            'maroon2',
+            'maroon3',
+            'maroon4',
+            'MediumAquamarine',
+            'MediumBlue',
+            'MediumOrchid',
+            'MediumOrchid1',
+            'MediumOrchid2',
+            'MediumOrchid3',
+            'MediumOrchid4',
+            'MediumPurple',
+            'MediumPurple1',
+            'MediumPurple2',
+            'MediumPurple3',
+            'MediumPurple4',
+            'MediumSeaGreen',
+            'MediumSlateBlue',
+            'MediumSpringGreen',
+            'MediumTurquoise',
+            'MediumVioletRed',
+            'MidnightBlue',
+            'MintCream',
+            'MistyRose',
+            'MistyRose1',
+            'MistyRose2',
+            'MistyRose3',
+            'MistyRose4',
+            'moccasin',
+            'NavajoWhite',
+            'NavajoWhite1',
+            'NavajoWhite2',
+            'NavajoWhite3',
+            'NavajoWhite4',
+            'navy',
+            'NavyBlue',
+            'OldLace',
+            'olive',
+            'OliveDrab',
+            'OliveDrab1',
+            'OliveDrab2',
+            'OliveDrab3',
+            'OliveDrab4',
+            'orange',
+            'orange1',
+            'orange2',
+            'orange3',
+            'orange4',
+            'OrangeRed',
+            'OrangeRed1',
+            'OrangeRed2',
+            'OrangeRed3',
+            'OrangeRed4',
+            'orchid',
+            'orchid1',
+            'orchid2',
+            'orchid3',
+            'orchid4',
+            'PaleGoldenrod',
+            'PaleGreen',
+            'PaleGreen1',
+            'PaleGreen2',
+            'PaleGreen3',
+            'PaleGreen4',
+            'PaleTurquoise',
+            'PaleTurquoise1',
+            'PaleTurquoise2',
+            'PaleTurquoise3',
+            'PaleTurquoise4',
+            'PaleVioletRed',
+            'PaleVioletRed1',
+            'PaleVioletRed2',
+            'PaleVioletRed3',
+            'PaleVioletRed4',
+            'PapayaWhip',
+            'PeachPuff',
+            'PeachPuff1',
+            'PeachPuff2',
+            'PeachPuff3',
+            'PeachPuff4',
+            'peru',
+            'pink',
+            'pink1',
+            'pink2',
+            'pink3',
+            'pink4',
+            'plum',
+            'plum1',
+            'plum2',
+            'plum3',
+            'plum4',
+            'PowderBlue',
+            'purple',
+            'purple1',
+            'purple2',
+            'purple3',
+            'purple4',
+            'red',
+            'red1',
+            'red2',
+            'red3',
+            'red4',
+            'RosyBrown',
+            'RosyBrown1',
+            'RosyBrown2',
+            'RosyBrown3',
+            'RosyBrown4',
+            'RoyalBlue',
+            'RoyalBlue1',
+            'RoyalBlue2',
+            'RoyalBlue3',
+            'RoyalBlue4',
+            'SaddleBrown',
+            'salmon',
+            'salmon1',
+            'salmon2',
+            'salmon3',
+            'salmon4',
+            'SandyBrown',
+            'SeaGreen',
+            'SeaGreen1',
+            'SeaGreen2',
+            'SeaGreen3',
+            'SeaGreen4',
+            'seashell',
+            'seashell1',
+            'seashell2',
+            'seashell3',
+            'seashell4',
+            'sienna',
+            'sienna1',
+            'sienna2',
+            'sienna3',
+            'sienna4',
+            'silver',
+            'SkyBlue',
+            'SkyBlue1',
+            'SkyBlue2',
+            'SkyBlue3',
+            'SkyBlue4',
+            'SlateBlue',
+            'SlateBlue1',
+            'SlateBlue2',
+            'SlateBlue3',
+            'SlateBlue4',
+            'SlateGray',
+            'SlateGray1',
+            'SlateGray2',
+            'SlateGray3',
+            'SlateGray4',
+            'SlateGrey',
+            'snow',
+            'snow1',
+            'snow2',
+            'snow3',
+            'snow4',
+            'SpringGreen',
+            'SpringGreen1',
+            'SpringGreen2',
+            'SpringGreen3',
+            'SpringGreen4',
+            'SteelBlue',
+            'SteelBlue1',
+            'SteelBlue2',
+            'SteelBlue3',
+            'SteelBlue4',
+            'tan',
+            'tan1',
+            'tan2',
+            'tan3',
+            'tan4',
+            'teal',
+            'thistle',
+            'thistle1',
+            'thistle2',
+            'thistle3',
+            'thistle4',
+            'tomato',
+            'tomato1',
+            'tomato2',
+            'tomato3',
+            'tomato4',
+            'turquoise',
+            'turquoise1',
+            'turquoise2',
+            'turquoise3',
+            'turquoise4',
+            'violet',
+            'VioletRed',
+            'VioletRed1',
+            'VioletRed2',
+            'VioletRed3',
+            'VioletRed4',
+            'wheat',
+            'wheat1',
+            'wheat2',
+            'wheat3',
+            'wheat4',
+            'white',
+            'WhiteSmoke',
+            'yellow',
+            'yellow1',
+            'yellow2',
+            'yellow3',
+            'yellow4',
+            'YellowGreen',
         ]
 
         for color in colors:
             button = self.color_swatch_new(color)
             flowbox.add(button)
 
+
 def main(demoapp=None):
     FlowBoxApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/images.py b/examples/demo/demos/images.py
index 3dac4ccd..80c99af5 100644
--- a/examples/demo/demos/images.py
+++ b/examples/demo/demos/images.py
@@ -300,5 +300,6 @@ def main(demoapp=None):
     ImagesApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/infobars.py b/examples/demo/demos/infobars.py
index c36de2b5..b8a1dc71 100644
--- a/examples/demo/demos/infobars.py
+++ b/examples/demo/demos/infobars.py
@@ -98,5 +98,6 @@ def main(demoapp=None):
     InfobarApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/links.py b/examples/demo/demos/links.py
index e907abdf..c6d331d6 100644
--- a/examples/demo/demos/links.py
+++ b/examples/demo/demos/links.py
@@ -72,5 +72,6 @@ def main(demoapp=None):
     LinksApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/menus.py b/examples/demo/demos/menus.py
index fbc2daa5..7cf2e570 100644
--- a/examples/demo/demos/menus.py
+++ b/examples/demo/demos/menus.py
@@ -129,5 +129,6 @@ def main(demoapp=None):
     MenusApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/pickers.py b/examples/demo/demos/pickers.py
index 4d5347f9..d8a9c752 100644
--- a/examples/demo/demos/pickers.py
+++ b/examples/demo/demos/pickers.py
@@ -72,5 +72,6 @@ def main(demoapp=None):
     PickersApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/pixbuf.py b/examples/demo/demos/pixbuf.py
index 4f3329be..c213584b 100644
--- a/examples/demo/demos/pixbuf.py
+++ b/examples/demo/demos/pixbuf.py
@@ -179,5 +179,6 @@ def main(demoapp=None):
     PixbufApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/printing.py b/examples/demo/demos/printing.py
index b476e30b..6e68037d 100644
--- a/examples/demo/demos/printing.py
+++ b/examples/demo/demos/printing.py
@@ -175,5 +175,6 @@ def main(demoapp=None):
     GLib.idle_add(app.run, demoapp.window)
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()
diff --git a/examples/demo/demos/rotatedtext.py b/examples/demo/demos/rotatedtext.py
index 232f9fd3..d47b1cfe 100644
--- a/examples/demo/demos/rotatedtext.py
+++ b/examples/demo/demos/rotatedtext.py
@@ -194,5 +194,6 @@ def main(demoapp=None):
     RotatedTextApp()
     Gtk.main()
 
+
 if __name__ == '__main__':
     main()