we can have wind without degrees (only speed)

[chrisu/seepark.git] / owm.py

diff --git a/owm.py b/owm.py
index 1e03670c7dbeb9a8b4e92b86e1b98216ae4c7d7c..ada256794cf031357f5eb691256433bb0bf082f6 100755 (executable)
--- a/owm.py
+++ b/owm.py
@@ -7,10 +7,14 @@
 # 3319578 for Obsteig, AT
 
 from pprint import pprint
+import argparse
 import requests
 import configparser
 import os
+import csv
 import datetime
+import math
+import sys
 
 baseurl = 'http://api.openweathermap.org/data/2.5/weather'
 debug = False
@@ -36,7 +40,7 @@ def fromtimestamp(timestamp, format):
 
 # https://stackoverflow.com/questions/7490660/converting-wind-direction-in-angles-to-text-words
 def degToCompass(num):
-    if num is None:
+    if num is None or num is math.nan:
         return 'N/A'
     val=int((num/22.5)+.5)
     arr=["N","NNO","NO","ONO","O","OSO", "SO", "SSO","S","SSW","SW","WSW","W","WNW","NW","NNW"]
@@ -44,6 +48,7 @@ def degToCompass(num):
 
 
 def extractweatherdata(w):
+    w['wind']['deg'] = math.nan
     data = dict(
         datetime = w['dt'],
         sunrise = w['sys']['sunrise'],
@@ -55,7 +60,6 @@ def extractweatherdata(w):
         weather = w['weather'][0]['description'],
         sky = w['weather'][0]['main'],
         windspeed = w['wind']['speed'],
-        winddegrees = w['wind']['deg'],
         cloudiness = w['clouds']['all'],
     )
 
@@ -63,17 +67,36 @@ def extractweatherdata(w):
     data['sunset_t'] = fromtimestamp(data['sunset'], '%H:%M:%S')
     data['date'] = fromtimestamp(data['datetime'], '%Y-%m-%d')
     data['time'] = fromtimestamp(data['datetime'], '%H:%M:%S')
+    data['winddegrees'] = w['wind']['deg'] if 'deg' in w['wind'] else math.nan
     data['winddirection'] = degToCompass(data['winddegrees'])
-    data['precipitation'] = w['rain']['3h'] if 'rain' in w else 'N/A'
+    data['precipitation'] = w['rain']['3h'] if 'rain' in w else math.nan
 
     return data
-        
 
-def main():
+
+def write_csv(csv_file, weather_data):
+    """output like wetter.at.pl"""
+    with open(csv_file, "a", newline="") as file:
+        writer = csv.writer(file, dialect="excel", delimiter=';')
+        writer.writerow([
+            weather_data['date'],
+            weather_data['time'],
+            weather_data['sunrise_t'],
+            weather_data['sunset_t'],
+            "{:.2f}".format(weather_data['temp']),
+            "{:.2f} mm/h".format(weather_data['precipitation']),
+            "{:.1f} km/h {}".format(weather_data['windspeed'], weather_data['winddirection']),
+            weather_data['weather'],
+            "{}".format(weather_data['cloudiness'])
+        ])
+
+
+def main(configfile):
     config = configparser.ConfigParser()
-    config.read(os.path.expanduser('~/seewasser.ini'))
-    apikey = config.get('openweathermap', 'apikey');
-    cityid = config.get('openweathermap', 'cityid');
+    config.read(configfile)
+    apikey = config.get('openweathermap', 'apikey')
+    cityid = config.get('openweathermap', 'cityid')
+    csvfile = config.get("openweathermap", 'csvfilename')
 
     weather_raw = getweather(apikey, cityid)
     if debug:
@@ -81,23 +104,17 @@ def main():
     weather = extractweatherdata(weather_raw)
     if debug:
         pprint(weather)
+
     # TODO:
     # write to db
+
     # write to csv
-    
-    # output like wetter.at.pl
-    print(
-        weather['date'] + ';' +
-        weather['time'] + ';' +
-        weather['sunrise_t'] + ';' +
-        weather['sunset_t'] + ';' +
-        str(weather['temp']) + ';' +
-        str(weather['precipitation']) + ' mm/h;' +
-        str(weather['windspeed']) + ' km/h ' + weather['winddirection'] + ';' +
-        weather['weather'] + ';' +
-        str(weather['cloudiness'])
-    )
+    write_csv(os.path.expanduser(csvfile), weather)
+
 
-    
 if __name__ == '__main__':
-    main()
+    default_config_file = os.path.expanduser('~/seewasser.ini')
+    parser = argparse.ArgumentParser(description='Get OpenWeathermap data')
+    parser.add_argument('--config', default=default_config_file, help='configuration file')
+    args = parser.parse_args()
+    main(args.config)