Config
├───components
│ page_1.py
│ page_2.py
│ __init__.py
│
├───templates
│ home.html
│ app.py
app.py file and the file in components the import section must be the same such as.
app.py
from flask import Flask, render_template, url_for
app = Flask(__name__, template_folder="components/templates")
import components
if __name__ == "__main__":
app.run(use_reloader=True, debug=True)
and file components/page_1.py
from __main__ import app, render_template, url_for
@app.route("/")
def page_1():
return render_template("home.html", title_name="page_1")
render_template and url_for It is active on this page. So in the app.py file must be added to it.