Why is this import running twice?

[extan1]

Hi Dean, thanks for your reply!

Here's what routes.py looks like:

import os, subprocess
from flask import render_template, request, redirect, url_for, jsonify
from myproject import app, db
from myproject.models import Session, Utterance
from myproject.mymodule import myfunction  #this module contains a global that can only be instantiated once

Note that my previous post abbreviated __init__.py for clarity. The entire script also instantiates a db as so:

from flask import Flask
from flask_sqlalchemy import SQLAlchemy

app = Flask(__name__)
# configure the SQLite database, relative to the app instance folder
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///db.sqlite'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
db = SQLAlchemy(app)

from myproject import routes

I was thinking that since __init__.py defines app before it import routes, it would at that point be safe to import app from inside routes.py (without it becoming circular).

ie, the interpreter sees app in __initi__.py, then import routes. Inside routes.py, when it sees import app, it says, 'ok, I already know about app' and all is well...No?