编写了一个命令，可以从现有的Django-CMS插件创建一个Django-CMS插件

from django.core.management.base import BaseCommand
from cms.plugin_base import PluginBase
from cms.plugin_pool import plugin_pool

class CreatePluginCommand(BaseCommand):
    help = 'Create a new Django-CMS plugin from an existing plugin'

    def add_arguments(self, parser):
        parser.add_argument('existing_plugin', type=str, help='Name of the existing plugin')
        parser.add_argument('new_plugin', type=str, help='Name of the new plugin')

    def handle(self, *args, **options):
        existing_plugin = options['existing_plugin']
        new_plugin = options['new_plugin']

        # Find the existing plugin
        plugin = plugin_pool.get_plugin(existing_plugin)

        # Create a new plugin based on the existing plugin
        new_plugin_class = type(new_plugin, (PluginBase,), plugin.__dict__.copy())
        plugin_pool.register_plugin(new_plugin_class)

        self.stdout.write(self.style.SUCCESS(f'Successfully created new plugin: {new_plugin}'))