How to import routes flask-CodePudding

I am a beginner with Flask and I have created a project with an MVC structure

CODE :

.
├── app
│. │── main.py
│  ├── controllers
│  │  ├── dbscan.py
│  │  ├── home.py
│  │  └── kmeans.py
│  ├── models
│  │  ├── dbscan.py
│  │  └── kmeans.py
│  ├── static
│  │  └── XXXX
│  └── views
│     └── XXXX

└── main.py

File main.py

from flask import Flask

app = Flask(
    __name__,
    template_folder='app/views',
    static_folder='app/static'
)

if __name__ == "__main__":
    app.run(debug=True)

File home.py

from flask import render_template

@app.route("/")
def home():
    return render_template('home.html')

ISSUE :

I already understood the problem but I don't know how to fix it...

There is no link between the controllers files and the main.py

So, how I can link all routes present in controllers folder and main.py ?

UPDATE :

home.py

from flask import Blueprint, render_template

home_hdl = Blueprint('home_hdl', __name__, template_folder='views')

@home_hdl.route("/")
def home():
    return render_template('home.html')

main.py

from flask import Flask

from app.controllers.home import home_hdl

app = Flask(
    __name__,
    template_folder='app/views',
    static_folder='app/static'
)
app.register_blueprint(home_hdl)

if __name__ == "__main__":
    app.run(debug=True)

Folders

.
├── app
│  ├── controllers
│  │  ├── __init__.py
│  │  ├── dbscan.py
│  │  ├── home.py
│  │  └── kmeans.py
│  ├── main.py
│  ├── models
│  │  └── XXXX
│  ├── static
│  │  └── XXXX
│  └── views
│     └── XXXX
└── XXXX

CodePudding user response：

Try this

Define a handler in each of the files you have under the controllers folder (the ones that will handle routing).

E.g. for the dbscan.py, you could have

    from flask import Blueprint
    dbscan_handlers = Blueprint('dbscan_handlers', __name__, template_folder='views')

   # Your routes (in the dbscan.py file) will then be something like this
   @dbscan_handlers.route('/xyz/'):
    .....

   @dbscan_handlers.route('/def/'):
    ....

Then you register the handler in main.py

    from controllers.dbscan import dbscan_handlers
    app.register_blueprint(dbscan_handlers)

Note that to do from controllers.abc import xyz, you need to have an __init.py__ file in controllers. The file can be empty.
When someone accesses your app, it will go to main.py and if the route is of the pattern /xyz/, it will be handled by dbscan.py file