Cleanup: pep8, unused vars, line length

release/scripts/startup/bl_ui/properties_grease_pencil_common.py

@@ -160,6 +160,7 @@ class GreasePencilSculptOptionsPanel:
 
             layout.prop(settings, "use_edit_uv", text="Affect UV")
 
+
 # GP Object Tool Settings
 class GreasePencilDisplayPanel:
     bl_label = "Brush Tip"
@@ -175,9 +176,11 @@ class GreasePencilDisplayPanel:
             else:
                 # GP Sculpt and Weight Paint always have Brush Tip panel.
                 return True
+        return False
 
     def draw_header(self, context):
-        if self.is_popover: return
+        if self.is_popover:
+            return
 
         if context.mode == 'PAINT_GPENCIL':
             brush = context.tool_settings.gpencil_paint.brush
@@ -506,7 +509,7 @@ class GPENCIL_MT_move_to_layer(Menu):
             gpl_active = context.active_gpencil_layer
             tot_layers = len(gpd.layers)
             i = tot_layers - 1
-            while(i >= 0):
+            while i >= 0:
                 gpl = gpd.layers[i]
                 if gpl.info == gpl_active.info:
                     icon = 'GREASEPENCIL'
@@ -716,12 +719,11 @@ class GreasePencilToolsPanel:
     bl_options = {'DEFAULT_CLOSED'}
 
     @classmethod
-    def poll(cls, context):
+    def poll(cls, _context):
         # XXX - disabled in 2.8 branch.
+        # return (context.gpencil_data is not None)
         return False
 
-        return (context.gpencil_data is not None)
-
     def draw(self, context):
         layout = self.layout