main.py

from flask import *
from threading import Timer
from requests import get
import os
import json
import datetime

weather = {}
api_key = os.environ.get('API_KEY', None)
if api_key is None:
    try:
        api_key = open('api_key.txt', 'r').read().strip()
    except FileNotFoundError:
        print('No API Key Found, please set the API_KEY environment variable, or create a file called api_key.txt')
        exit()  
geolocation_url = "http://api.openweathermap.org/geo/1.0/zip?zip={0},{1}&appid=" + api_key
weather_url = "https://api.openweathermap.org/data/3.0/onecall?lat={0}&lon={1}&exclude={2}&units=metric&appid=" + api_key

# Lat and Lon for Caringbah, Sydney, NSW, Australia
lat = '-34.0536'
lon = '151.1212'

def get_weather():
    global weather
    
    weather = json.loads(get(weather_url.format(lat, lon, 'hourly,minutely')).text)

    for day in weather['daily']:
        day['dt'] = datetime.datetime.fromtimestamp(day['dt']).strftime('%a %d %b')
    
    t = Timer(600.0, get_weather)
    t.daemon = True
    t.start()

app = Flask(__name__)

get_weather()

#@app.route('/')
#def index():
#    return render_template('get_location.html')

@app.route('/')#weather')#/<lat>/<lon>')
def weather_func():#lat, lon):
    return render_template('index.html', weather=weather)

@app.route('/api')
def api():
    return weather

#@app.route('/location/<zip_code>/<country>')
#def get_location(zip_code, country):
#    geo = json.loads(get(geolocation_url.format(zip_code, country)).text)
#    return redirect('/weather/{0}/{1}'.format(geo['lat'], geo['lon']))

if __name__ == '__main__':
    app.run("0.0.0.0", port=8001, debug=True)