python - Importing Views -

my app layout

my_app     __init__.py      my_app         __init__.py         startup             create_app.py             create_users.py             common_settings.py         core             models.py             views.py 

inner __init__.py

from flask import flask flask_script import manager flask_sqlalchemy import sqlalchemy  app = flask(__name__)           # wsgi compliant web application object db = sqlalchemy(app)            # setup flask-sqlalchemy manager = manager(app)          # setup flask-script  my_app.startup.create_app import create_app create_app() 

create_app.py

from native_linguist_server import app, db  @app.before_first_request def initialize_app_on_first_request():     """ create users , roles tables on first http request """     .create_users import create_users     create_users()  def create_app(extra_config_settings={}):         app.config.from_envvar('env_settings_file')                # load blueprints manager commands, models , views     my_app import core                                                           return app 

when run app , try load view in browser, 404 error.

however if change:

from my_app import core     

to

from my_app.core import views 

it works fine.

could please explain me difference between these 2 calls? have thought from my_app import core import views.py , hence there wouldn't issue.

thank you.

from my_app import core 

will load , execute my_app/core/__init__.py (if exists). have access identifiers defined inside or imported __init__.py.

from my_app.core import views 

will load , execute my_app/core/views.py. you'll have access identifiers defined inside or imported views.py.

to behavior you're expecting, you'll need import views inside __init__.py:

from . import views