python - 使用 Flask Classy 设置 Flask

Question

我的文件夹根 app.py 看起来像这样

import application
if __name__ == '__main__':
application.app.run()

我有一个名为 application 的文件夹，其中包含 __init__.py 和三个文件夹: Controller 、模型和 View 。

__init__.py 看起来像这样

__version__ = '0.1'
from application.controllers import QuotesView
from flask import Flask
app = Flask('application')
QuotesView.register(app)

我的controllers文件夹有两个文件__init__.py和QuotesView.py，如下所示:QuotesView.py

from flask.ext.classy import FlaskView, route
# we'll make a list to hold some quotes for our app
quotes = [
"A noble spirit embiggens the smallest man! ~ Jebediah Springfield",
"If there is a way to do it better... find it. ~ Thomas Edison",
"No one knows what he can do till he tries. ~ Publilius Syrus"
]

class QuotesView(FlaskView):
    @route('/')
    def index(self):
        return "<br>".join(quotes)
    def before_request(self, name):
        print("something is happening to a widget")

    def after_request(self, name, response):
        print("something happened to a widget")
        return response

并且 __init__.py 看起来像这样:

import os
import glob
__all__ = [os.path.basename(
f)[:-3] for f in glob.glob(os.path.dirname(__file__) + "/*.py")]

当我运行 python app.py 时，我收到属性丢失错误:

Traceback (most recent call last):
  File "app.py", line 2, in <module>
import application
File "/home/ace/flask/application/__init__.py", line 5, in <module>
QuotesView.register(app)
AttributeError: 'module' object has no attribute 'register'

虽然我觉得是我的导入，但我似乎无法弄清楚错误在哪里。我对 python 还很陌生，所以这可能很简单。

Answer 1

问题是您没有导入 QuotesView 类。您将导入 QuotesView 模块。因此，为了使其正常工作，您可以执行以下两项操作之一:

1.从模块中导入类:

from application.controllers.QuotesView import QuotesView

2.从导入模块访问类

from application.controllers import QuotesView
QuotesView.QuotesView.register(app)

我认为方法 1 更简洁。