helper.py

from datetime import datetime
import requests


def kelvin_to_celsius(K):
    return int(K - 273.15)


def kelvin_to_fahrenheit(K):
    return int(K * (9 / 5) - 459.67)


def timestamp_to_datetime(ts):
    return datetime.fromtimestamp(ts).strftime("%m/%d %I:%M %p")


def get_daily_forecast(daily_list):
    """
    Create daily forecast dictionary from a list
    :param daily_list:
    :return: list of dictionaries
    """
    forecast_list = []
    for item in daily_list[:-3]:
        D = {}
        D['datetime'] = timestamp_to_datetime(item['dt'])[:5]
        D['celsius'] = kelvin_to_celsius(item['feels_like']['day'])
        D['fahrenheit'] = kelvin_to_fahrenheit(item['feels_like']['day'])
        D['uvi'] = item['uvi']
        forecast_list.append(D)
    return forecast_list


def forecast_api_request(response, API_KEY):
    """
    Query again to get next five days forecasting
    :param response:
    :param API_KEY:
    :return:
    """
    lon = response['coord']['lon']
    lat = response['coord']['lat']
    url = 'https://api.openweathermap.org/data/2.5/onecall?lat={}&lon={}&exclude=minutely,hourly&appid={}' \
        .format(lat, lon, API_KEY)
    forecast_response = requests.get(url).json()
    date_and_time = timestamp_to_datetime(forecast_response['current']['dt'])
    current_date = date_and_time.split()[0]
    current_time = date_and_time.split()[1]
    weather_dict = {
        'current': {
            'city': response['name'].title(),
            'country': response['sys']['country'].upper(),
            'celsius': kelvin_to_celsius(response['main']['feels_like']),
            'fahrenheit': kelvin_to_fahrenheit(response['main']['feels_like']),
            'uvi': forecast_response['current']['uvi'],
            'description': response['weather'][0]['description'],
            'iconcode': response['weather'][0]['id'],
            'date': current_date,
            'currenttime': datetime.strptime(current_time, "%H:%M").strftime("%I:%M %p"),
        },
        'forecast': get_daily_forecast(forecast_response['daily'])
    }
    return weather_dict

def get_city(dataSet, city_id):

    for d in dataSet:
        if int(d['id']) == int(city_id):
            return d
    return ''