1. KeyError: 'the length of IDProperty names is limited to 31
characters'object['x'*32] = 'why not make the limit 32 or 64?, 31 is an odd
number - not possible to use md5sum hashes either as a workaround'
2. inner single quotes are invalid## this failslayout.prop( object,
"['my-custom-prop']" ) # a better warning should be printed, or
single quotes should be supported## this works - double quotes must be
usedlayout.prop( object, '["my-custom-prop"]' )
3. dicts are allowed, but layout.prop(...) can not show each subkey on its
own## (the dict can be viewed as a string from Custom Properties Panel, but
thats not very useful for the user) ##object['x'] = {'a':1, 'b':2}box.prop(
object, '["x"]["a"]' ) # error: rna_uiItemR: property not found:
Object.["x"]["a"]box.prop( object, '["x"]' ) # this also fails
4. booleans not supported by custom propertiesobject['my-custom-prop'] = True
# converted to 1 without any warninglayout.prop( object,
'["my-custom-prop"]', toggle=True ) # toggle is ignored, numeric entry is
displayed instead
## workaround ##class mypanel(bpy.types.Panel): bl_space_type = 'PROPERTIES'
bl_region_type = 'WINDOW' bl_context = "object" bl_label = "toggle
custom prop example" @classmethod def poll(cls, context): return True
def draw(self, context): layout = self.layout ob =
context.active_object tag = 'my-custom-prop' if tag not
in ob.keys(): ob[tag] = True v = ob[tag] if v: icon =
'CHECKBOX_HLT' else: icon = 'CHECKBOX_DEHLT' op =
layout.operator( 'toggle_prop', text=tag, icon=icon ) op.propname
= tag
class toggle_prop_op(bpy.types.Operator): '''operator:
prop toggle helper''' bl_idname = "toggle_prop" bl_label = "toggle"
bl_options = {'REGISTER', 'UNDO'} propname =
StringProperty(name="property name", description="...", maxlen=32, default="")
@classmethod def poll(cls, context): return True def invoke(self,
context, event): ob = context.active_object ob[
self.propname ] = not ob[ self.propname ] return {'FINISHED'}
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