Problem with importing a module in a Python3 script - python-3.x

Question

I got this error: ImportError: cannot import name 'admin' from ' admin.blueprint' after I'm in the module blueprint.py imported Post from models.py please help me to understand the structure of the application in order to avoid such errors in the future.
<module main.py>
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from admin.blueprint import admin
from config import Config
app = Flask(__name__)
app.config.from_object(Config)
db = SQLAlchemy(app)
app.register_blueprint(admin, url_prefix='/admin')
import views
if __name__ == '__main__'
db.create_all()
app.run(debug=True)`
<module blueprint.py>
from flask import Blueprint, redirect, render_template, request, url_for
from config import ConfigAdmin
from models import Post
admin = Blueprint('admin', __name__, template_folder='templates', static_folder='static')
#admin.route('/')
def admin_login():
return render_template('admin/admin-login.html')
#admin.route('/admin-panel', methods=['POST'])
def admin_panel():
if request.form['username'] == ConfigAdmin.ADMIN_NAME and request.form['password'] == ConfigAdmin.ADMIN_PASS:
return render_template('admin/admin-panel.html')
else:
return redirect(url_for('admin.admin_login'))
#admin.route('/create-post')
def create_post():
return render_template('admin/create-post.html')
#admin.route('/add-post', methods=['POST'])
def add_post():
if request.method == 'POST':
body = Post(post_title=request.form['title'], post_text=request.form['article'], post_img=redirect.form['file'])
db.session.add(body)
db.session.commit()
return redirect(url_for('index'))
else:
return "Err"
<module models.py>
from main import db
class Admin(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(20), unique=True)
passw = db.Column(db.String(20), unique=True)
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(50), unique=True)
text = db.Column(db.String(500), unique=True)
img = db.Column(db.String(50))
[error][1]
[structure][2]
[1]: https://i.stack.imgur.com/cgrbH.png
[2]: https://i.stack.imgur.com/fDr7O.png

Answer 1

Have you tried creating the following app? Flask Tutorial App - Flaskr blog
I highly recommend following this structure if you're starting out.
looks as follows:
/home/user/Projects/flask-tutorial
├── flaskr/
│ ├── __init__.py
│ ├── db.py
│ ├── schema.sql
│ ├── auth.py
│ ├── blog.py
│ ├── templates/
│ │ ├── base.html
│ │ ├── auth/
│ │ │ ├── login.html
│ │ │ └── register.html
│ │ └── blog/
│ │ ├── create.html
│ │ ├── index.html
│ │ └── update.html
│ └── static/
│ └── style.css
├── tests/
│ ├── conftest.py
│ ├── data.sql
│ ├── test_factory.py
│ ├── test_db.py
│ ├── test_auth.py
│ └── test_blog.py
├── venv/
├── setup.py
└── MANIFEST.in
If you would like it to function in your current app I suggest you create a admin.py inside the same folder as your main.py
from flask import Blueprint, redirect, render_template, request, url_for
from config import ConfigAdmin
from models import Post
bp = Blueprint('admin', __name__, template_folder='templates', static_folder='static')
then import it in main.py as follows
from admin import bp as adminbp
app.register_blueprint(adminbp, url_prefix='/admin')