Flask返回404的任何内容

Question

这是我的app.py

import logging.config

import os
from flask import Flask, Blueprint, url_for
from flask_migrate import Migrate
from flask_restplus import Api

from authentek import settings
from authentek.api.blog.endpoints.posts import ns as blog_posts_namespace
from authentek.api.blog.endpoints.categories import ns as blog_categories_namespace
from authentek.api.auth.endpoints.users import ns as users_namespace
from authentek.api.restplus import api
from authentek.database import db

app = Flask(__name__)
logging_conf_path = os.path.normpath(os.path.join(os.path.dirname(__file__), '../logging.conf'))
logging.config.fileConfig(logging_conf_path)
log = logging.getLogger(__name__)

def has_no_empty_params(rule):
    defaults = rule.defaults if rule.defaults is not None else ()
    arguments = rule.arguments if rule.arguments is not None else ()
    return len(defaults) >= len(arguments)


@app.route("/sitemap")
def site_map():
    links = []
    for rule in app.url_map.iter_rules():
        # Filter out rules we can't navigate to in a browser
        # and rules that require parameters
        if "GET" in rule.methods and has_no_empty_params(rule):
            url = url_for(rule.endpoint, **(rule.defaults or {}))
            links.append((url, rule.endpoint))
    # links is now a list of url, endpoint tuples

def configure_app(flask_app):
    flask_app.config['SERVER_NAME'] = settings.FLASK_SERVER_NAME
    flask_app.config['SQLALCHEMY_DATABASE_URI'] = settings.SQLALCHEMY_DATABASE_URI
    flask_app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = settings.SQLALCHEMY_TRACK_MODIFICATIONS
    flask_app.config['SWAGGER_UI_DOC_EXPANSION'] = settings.RESTPLUS_SWAGGER_UI_DOC_EXPANSION
    flask_app.config['RESTPLUS_VALIDATE'] = settings.RESTPLUS_VALIDATE
    flask_app.config['RESTPLUS_MASK_SWAGGER'] = settings.RESTPLUS_MASK_SWAGGER
    flask_app.config['ERROR_404_HELP'] = settings.RESTPLUS_ERROR_404_HELP


def initialize_app(flask_app):
    configure_app(flask_app)

    blueprint = Blueprint('api', __name__, url_prefix='/api')
    # api.init_app(blueprint)
    migrate = Migrate(flask_app, db)
    api.add_namespace(blog_posts_namespace)
    api.add_namespace(blog_categories_namespace)
    api.add_namespace(users_namespace)

    if blueprint.name not in flask_app.blueprints.keys():
        flask_app.register_blueprint(blueprint)
    else:
        flask_app.blueprints[blueprint.name] = blueprint
    print(flask_app.blueprints)
    db.init_app(flask_app)


    api.init_app(flask_app)


def main():
    from authentek.database.models import Post, Category, User, BlacklistToken  # noqa
    app.config.from_object(settings)
    initialize_app(app)
    log.info('>>>>> Starting development server at http://{}/api/ <<<<<'.format(app.config['SERVER_NAME']))
    app.run(host='0.0.0.0', debug=settings.FLASK_DEBUG)


if __name__ == "__main__":
    main()

忘记所有路线，至少/ sitemap应该有效！