E-Paper-Calendar/Calendar/OwmForecasts.py
2019-03-09 15:48:31 +01:00

73 lines
No EOL
3 KiB
Python

from WeatherForecast import WeatherForecast
from WeatherInterface import WeatherInterface
import pyowm
from datetime import datetime
from settings import units
class OwmForecasts (WeatherInterface):
"""Fetches weather through the Openweathermap-api."""
def __init__ (self, location, api_key, paid_api=False):
subscription = "pro" if paid_api else None
self.api = pyowm.OWM(api_key, subscription_type=subscription)
self.units = units
self.location = location
def is_available (self):
try:
return self.api.is_API_online()
except:
return False
def get_today_forecast (self, location=None):
if self.is_available() is False:
return None
location = self.location if location is None else location
observation = self.api.weather_at_place(location)
weather = observation.get_weather()
return self.__get_forecast_from_weather__(weather, location=location)
def get_forecast_in_days (self, offset_by_days, location=None):
if offset_by_days is 0:
return self.get_today_forecast(location)
if self.is_available() is False:
return None
location = self.location if location is None else location
try:
forecast = self.api.daily_forecast(location, limit=offset_by_days)
target_weather = forecast.get_forecast().get_weathers()[-1]
return self.__get_forecast_from_weather__(target_weather, location=location)
except: # only allowed for paied membership
return None
def __get_forecast_from_weather__ (self, weather, location):
forecast_object = WeatherForecast()
forecast_object.units = self.units
forecast_object.fetch_time = datetime.now()
forecast_object.location = location
forecast_object.forecast_datetime = weather.get_reference_time(timeformat='date')
forecast_object.icon = weather.get_weather_icon_name()
forecast_object.air_humidity = str(weather.get_humidity())
forecast_object.clouds = str(weather.get_clouds())
forecast_object.short_description = str(weather.get_status())
forecast_object.detailed_description = str(weather.get_detailed_status())
forecast_object.air_pressure = str(weather.get_pressure()['press'])
if forecast_object.units == "metric":
forecast_object.air_temperature = str(int(weather.get_temperature(unit='celsius')['temp']))
forecast_object.wind_speed = str(int(weather.get_wind()['speed']))
if forecast_object.units == "imperial":
forecast_object.air_temperature = str(int(weather.get_temperature('fahrenheit')['temp']))
forecast_object.wind_speed = str(int(weather.get_wind()['speed'] * 0.621))
forecast_object.sunrise = datetime.fromtimestamp(int(weather.get_sunrise_time(timeformat='unix')))
forecast_object.sunset = datetime.fromtimestamp(int(weather.get_sunset_time(timeformat='unix')))
return forecast_object