I am trying to make a website that allows a user to create their own "to-watch" list and also can randomly select a title from the created list, showing the movie's plot, genre, and IMDb rating using an API. I've encountered a "NoneType' object is not subscriptable" error message when trying to run this function and am not sure how to overcome it. Here are the relevant parts of my code:
application.py
import os
from cs50 import SQL
from flask import Flask, flash, jsonify, redirect, render_template, request, session
from flask_session import Session
from tempfile import mkdtemp
from werkzeug.exceptions import default_exceptions, HTTPException, InternalServerError
from werkzeug.security import check_password_hash, generate_password_hash
from helpers import apology, login_required, imdb
app = Flask(__name__)
app.config["TEMPLATES_AUTO_RELOAD"] = True
@app.after_request
def after_request(response):
response.headers["Cache-Control"] = "no-cache, no-store, must-revalidate"
response.headers["Expires"] = 0
response.headers["Pragma"] = "no-cache"
return response
app.config["SESSION_FILE_DIR"] = mkdtemp()
app.config["SESSION_PERMANENT"] = False
app.config["SESSION_TYPE"] = "filesystem"
Session(app)
db = SQL("sqlite:///project.db")
@app.route("/select", methods=["GET", "POST"])
@login_required
def select():
if request.method == "POST":
"""Randomly pick a movie to watch"""
therearemovies = db.execute("SELECT uniqueid FROM movies WHERE id=:id", id=session["user_id"])
if therearemovies:
chosen = db.execute("SELECT * FROM movies WHERE id=:id ORDER BY RANDOM() LIMIT 1", id=session["user_id"])
for uniqueindex in chosen:
suggestion = uniqueindex["title"]
**info = imdb(suggestion)
plot = info["plot"]
genre = info["genre"]
rating = info["rating"]**
return render_template("select.html", suggestion=suggestion, plot=plot, genre=genre, rating=rating)
else:
return apology("You don't have any movies in your list")
else:
return render_template("/")
helper.py:
import os
import requests
import urllib.parse
def imdb(title):
try:
response=requests.get(f"http://www.omdbapi.com/?t={urllib.parse.quote_plus(title)}&apikey=12345678")
response.raise_for_status()
except requests.RequestException:
return None
try:
data = response.json()
return
{
"plot": data["plot"],
"genre": data["genre"],
"rating": data["imdbRating"]
}
except (KeyError, TypeError, ValueError):
return None
Error Message:
File "/home/ubuntu/finalproject/helpers.py", line 32, in decorated_function
return f(*args, **kwargs)
File "/home/ubuntu/finalproject/application.py", line 126, in select
plot = info["plot"]
TypeError: 'NoneType' object is not subscriptable
