made scripts pass the pep8 test (though not fully pep8 yet)

added comment in header to know if a script has been converted or not.

release/scripts/ui/properties_data_metaball.py

@@ -3,8 +3,10 @@
 # http://www.gnu.org/copyleft/gpl.html. Installing, importing or otherwise
 # using this module constitutes acceptance of the terms of this License.
 
+# <pep8 compliant>
 import bpy
 
+
 class DataButtonsPanel(bpy.types.Panel):
     bl_space_type = 'PROPERTIES'
     bl_region_type = 'WINDOW'
@@ -13,6 +15,7 @@ class DataButtonsPanel(bpy.types.Panel):
     def poll(self, context):
         return context.meta_ball
 
+
 class DATA_PT_context_metaball(DataButtonsPanel):
     bl_label = ""
     bl_show_header = False
@@ -33,6 +36,7 @@ class DATA_PT_context_metaball(DataButtonsPanel):
             split.template_ID(space, "pin_id")
             split.itemS()
 
+
 class DATA_PT_metaball(DataButtonsPanel):
     bl_label = "Metaball"
 
@@ -56,6 +60,7 @@ class DATA_PT_metaball(DataButtonsPanel):
         layout.itemL(text="Update:")
         layout.itemR(mball, "flag", expand=True)
 
+
 class DATA_PT_metaball_element(DataButtonsPanel):
     bl_label = "Active Element"