代码：
# -*- coding: utf-8 -*- from jinja2 import Environment, PackageLoader env = Environment(loader = PackageLoader('app', 'templates')) template = env.get_template('index.html') print(template.render(message = "Bienvenue sur mon site !"))
运行后报错
NotImplementedError: Can't perform this operation for unregistered loader type
解决
添加文件 __init__.py 到app文件夹下
参考
NotImplementedError: Can’t perform this operation for unregistered loader type
