blender panel plugin sample

MirrorVertexGroup.py

import bpy


def createVertexGroupWithEachBone(mesh, armature):
    print(mesh, armature)
    for b in armature.bones.keys():
        bpy.ops.object.vertex_group_add()
        bpy.context.active_object.vertex_groups.active.name=b

class MirrorVertexGroup(bpy.types.Operator):

    bl_idname = "mesh.mirror_vertexgroup"
    bl_label = "MirrorVertexGroup"
    bl_description = "add vertex group for mirroring Armature"
    bl_options = {'REGISTER', 'UNDO'}

    def execute(self, context):
        o=context.object
        #print(dir(o))
        for m in o.modifiers:
        	print(m)
        	if m.name=="Armature":
        		createVertexGroupWithEachBone(o.data, m.object.data)
        return {'FINISHED'}
    
    
class MirrorVertexGroupPanel(bpy.types.Panel):
    """Creates a Panel in the Object properties window"""
    bl_label = "VertexGroup"
    bl_space_type = 'VIEW_3D'
    bl_region_type = 'TOOLS'

    def draw(self, context):
        layout = self.layout
        obj = context.object

        row = layout.row()
        row.operator(MirrorVertexGroup.bl_idname)



bl_info = {
    "name": "MirrorVertexGroup",
    "author": "ousttrue",
    "version": (1, 0),
    "blender": (2, 77, 0),
    "location": "",
    "description": "Create VertexGroup for Mirror Armature",
    "warning": "",
    "support": "TESTING",
    "wiki_url": "",
    "tracker_url": "",
    "category": "Object"
}


def register():
    bpy.utils.register_class(MirrorVertexGroup)
    bpy.utils.register_class(MirrorVertexGroupPanel)
    #print("アドオンが有効化されました。")


def unregister():
    bpy.utils.unregister_class(MirrorVertexGroupPanel)
    bpy.utils.unregister_class(MirrorVertexGroup)
    #print("アドオンが無効化されました。")


if __name__ == "__main__":
    register()