server.py

from flask import Flask, render_template, request
from weather import get_current_weather
from waitress import serve

app = Flask(__name__)

@app.route('/')
@app.route('/index')
def index():
    return render_template('index.html')
@app.route('/weather')
def get_weather():
    city = request.args.get('city')
    #check for empty strings or strings with only spaces
    if not bool(city.strip()):
        city = "Frankfurt"
    weather_data = get_current_weather(city)  # weather_data is a json object 
    # city is not found by api
    if not weather_data['cod'] == 200:
        return render_template('city-not-found.html')
    return render_template(
        "weather.html",
        title=weather_data['name'],
        status=weather_data['weather'][0]['description'].capitalize(),
        temp=  f"{weather_data['main']['temp']:.1f}",
        feel_like=f"{weather_data['main']['feels_like']:.1f}"
    )

if __name__ == "__main__":
    serve(app,host='0.0.0.0', port = '8041')