owm.py

   1 #!/usr/bin/python3
   2
   3 # needs ~/seepark.ini with
   4 # [openweathermap]
   5 # apikey=...
   6 # cityid=..
   7 # 3319578 for Obsteig, AT
   8
   9 from pprint import pprint
  10 import requests
  11 import configparser
  12 import os
  13 import datetime
  14
  15 baseurl = 'http://api.openweathermap.org/data/2.5/weather'
  16 debug = False
  17
  18 def getweather(apikey, cityid):
  19     query = baseurl + '?units=metric&APPID={}&id={}&lang=de'.format(apikey, cityid)
  20     try:
  21         response = requests.get(query)
  22         if response.status_code != 200:
  23             response = 'N/A'
  24             return response
  25         else:
  26             weatherdata = response.json()
  27             return weatherdata
  28     except requests.exceptions.RequestException as error:
  29         print (error)
  30         sys.exit(1)
  31
  32
  33 def fromtimestamp(timestamp, format):
  34     return datetime.datetime.fromtimestamp(timestamp).strftime(format)
  35
  36
  37 # https://stackoverflow.com/questions/7490660/converting-wind-direction-in-angles-to-text-words
  38 def degToCompass(num):
  39     val=int((num/22.5)+.5)
  40     arr=["N","NNO","NO","ONO","O","OSO", "SO", "SSO","S","SSW","SW","WSW","W","WNW","NW","NNW"]
  41     return arr[(val % 16)]
  42
  43
  44 def extractweatherdata(w):
  45     data = dict(
  46         datetime = w.get('dt'),
  47         sunrise = w.get('sys').get('sunrise'),
  48         sunset = w.get('sys').get('sunset'),
  49         temp = w.get('main').get('temp'),
  50         pressure = w.get('main').get('pressure'),
  51         humidity = w.get('main').get('humidity'),
  52         visibility = w.get('visibility'),
  53         weather=w['weather'][0]['description'],
  54         sky=w['weather'][0]['main'],
  55         windspeed=w.get('wind').get('speed'),
  56         winddegrees=w.get('wind').get('deg'),
  57         cloudiness=w.get('clouds').get('all'),
  58     )
  59
  60     data['sunrise_t'] = fromtimestamp(data['sunrise'], '%H:%M:%S')
  61     data['sunset_t'] = fromtimestamp(data['sunset'], '%H:%M:%S')
  62     data['date'] = fromtimestamp(data['datetime'], '%Y-%m-%d')
  63     data['time'] = fromtimestamp(data['datetime'], '%H:%M:%S')
  64     data['winddirection'] = degToCompass(data['winddegrees'])
  65
  66     return data
  67
  68
  69 def main():
  70     config = configparser.ConfigParser()
  71     config.read(os.path.expanduser('~/seewasser.ini'))
  72     apikey = config.get('openweathermap', 'apikey');
  73     cityid = config.get('openweathermap', 'cityid');
  74
  75     weather_raw = getweather(apikey, cityid)
  76     if debug:
  77         pprint(weather_raw)
  78     weather = extractweatherdata(weather_raw)
  79     if debug:
  80         pprint(weather)
  81     # TODO:
  82     # write to db
  83     # write to csv
  84
  85     # output like wetter.at.pl
  86     print(
  87         weather['date'] + ';' +
  88         weather['time'] + ';' +
  89         weather['sunrise_t'] + ';' +
  90         weather['sunset_t'] + ';' +
  91         str(weather['temp']) + ';' +
  92         ';' + # precipitation missing? or only in XML: https://openweathermap.org/current ?
  93         str(weather['windspeed']) + 'km/h ' + weather['winddirection'] + ';' +
  94         weather['weather'] + ';' +
  95         str(weather['cloudiness'])
  96     )
  97
  98
  99 if __name__ == '__main__':
 100     main()