Question

我遇到了一个问题。控制台说发生了蓝图的名称冲突，但我认为它不属于烧瓶 - 靴子问题。我相信我有一些配置或未知的东西让我遇到了这个问题。

Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    app = create_app()
  File "D:\TONY\GitHub\private-home-flask-cuisine\db-example\app\__init__.py", line 79, in create_app
    init_extensions(app)
  File "D:\TONY\GitHub\private-home-flask-cuisine\db-example\app\__init__.py", line 46, in init_extensions
    extension.init_app(app=app)
  File "D:\TONY\GitHub\private-home-flask-cuisine\db-example\env\lib\site-packages\flask_bootstrap\__init__.py", line 137, in init_app
    app.register_blueprint(blueprint)
  File "D:\TONY\GitHub\private-home-flask-cuisine\db-example\env\lib\site-packages\flask\app.py", line 62, in wrapper_func
    return f(self, *args, **kwargs)
  File "D:\TONY\GitHub\private-home-flask-cuisine\db-example\env\lib\site-packages\flask\app.py", line 885, in register_blueprint
    (blueprint, self.blueprints[blueprint.name], blueprint.name)
AssertionError: A blueprint's name collision occurred between <flask.blueprints.Blueprint object at 0x034EA230> and <flask.blueprints.Blueprint object at 0x0349
7770>.  Both share the same name "bootstrap".  Blueprints that are created on the fly need unique names.

这是我的代码。我不知道会发生什么。

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#  @first_date    20160129
#  @date          20160129
#  @version       0.0
"""Init flask app
"""
from flask import Flask

from flask.ext.bootstrap import Bootstrap
from flask.ext.sqlalchemy import SQLAlchemy
from flask.ext.marshmallow import Marshmallow
from flask.ext.login import LoginManager

import configs


# Initializing process: This package is main flask app
app = Flask(__name__)
app.config.from_object(configs.CONFIGS['default'])


# Initializing process: This extesion list is created extension object
bootstrap = Bootstrap()
db = SQLAlchemy()
ma = Marshmallow()


login_manager = LoginManager()
login_manager.session_protection = "strong"
login_manager.login_view = 'users.login'


def init_extensions(app):
    '''Initializing the flask app with extensions'''
    # Extension List: Wrap up the all extensions
    extensions = (
        bootstrap,
        db,
        ma,  # Warning: Flask-SQLAlchemy must be initialized before Flask-Marshmallow.
        login_manager,
    )
    # Initializing process: Start to initial each extension
    for extension in extensions:
        extension.init_app(app=app)



def init_blueprints(app):
    '''Initializing the flask app with blueprints'''
    # Blueprint source: Import the blueprints and note these sources
    from .views import users

    from .web import web_bp

    # Blueprint List: Wrap up the all blueprints
    buleprints = (
        dict(blueprint=users.users_bp, url_prefix='/users'),

        dict(blueprint=web_bp, url_prefix=''),
    )

    # Initializing process: Start to initial each blueprint
    for blueprint in buleprints:
        app.register_blueprint(**blueprint)


def init_error_handlers(app):
    '''import error handler function'''
    from .error_handlers.built_in_exception_handlers import *
    from .error_handlers.status_code_handlers import *
    from .error_handlers.sqlachelmy_handlers import *


def create_app():
    '''It's a factory.'''
    # Initializing process: Initializing the main flask app with extensions
    init_extensions(app)

    # Initializing process: Initializing the main flask app with blueprints
    init_blueprints(app)

    # Initializing process: import error handlers
    init_error_handlers(app)

    return app

或者任何人都可以告诉我如何在应用程序中查找蓝图对象并让我跟踪错误。感谢。

Answer 1

看起来你的应用程序正在两次注册Bootstrap蓝图。 Bootstrap的源代码中有一行可以在init_app()

中注册它

尝试从此处删除它：

    ...
    bootstrap,
    db,
    ma,  # Warning: Flask-SQLAlchemy must be initialized before Flask-Marshmallow.
    login_manager,

或来自此元组：

# Blueprint List: Wrap up the all blueprints
    buleprints = (
        dict(blueprint=users.users_bp, url_prefix='/users'),

        dict(blueprint=web_bp, url_prefix=''),
    )

Flask - 发生了蓝图的名称冲突

1 个答案: