Flask is not working

[StrawberryPhoenix]

I am new to flask in python. I used the url in the webview but the page said 404 Not Found. What should I do?

[QwertyQwerty88]

@StrawberryPhoenix

What should I do?

Send the link to your Repl.

[StrawberryPhoenix]

main.py - Website Template - Replit

[QwertyQwerty88]

I’m getting 500 Internal Server Error, not a 404.

Anyway, you open the file, but don’t actually set f to that file, and so you’re trying to call the read() method on an empty string.

So change that to this

@app.route("/")
def index():
  f = open("static/templates/page.html", "r")
  page = f.read()
  f.close()
  return page

Or better, context managers (I think that’s what they’re called?)

@app.route("/")
def index():
  with open("static/templates/page.html", "r") as f:
    page = f.read()
  return page

Or even better, using Flask’s built in template renderer

from flask import Flask, render_template

app = Flask(__name__, template_folder="/static/templates/")


@app.route("/")
def index():
  return render_template("page.html")

[StrawberryPhoenix]

Thank you!!!