import bpy
from multiprocessing import Process
from . import blenderpack

class PACKAGE_OT_fetch_lists(bpy.types.Operator):
    bl_idname = "package.fetch_lists"
    bl_label = "Update package list(s)"

    def execute(self, context):
        settings = context.window_manager.PackageManagerSettings
        proc = Process(target=lambda: blenderpack.fetch(settings.url))
        proc.start()
        return {'FINISHED'}


def register():
    bpy.utils.register_class(PACKAGE_OT_fetch_lists)

def unregister():
    bpy.utils.unregister_class(PACKAGE_OT_fetch_lists)