from flask import Flask
from flask import request


app = Flask(__name__)

@app.route("/")
def hello_world():
    return """
<form action="a" method="GET">

<label for="rating_min">Min Rating: </label>
<input id="rating_min" type="number" name="rating_min"><br/>

<label for="rating_max">Max Rating: </label>
<input id="rating_max" type="number" name="rating_max"><br/>

<label for="genre">Genre: </label>
<input id="genre" type="text" name="genre"><br/>

<input type="submit">


</form>
    """

@app.route("/a")
def a():
    try:
        d = int(request.args.get('rating_min', 100))
    except ValueError:
        d = 100
    return str(d)


app.run()