weather.py

#!/usr/bin/python
# @author Shinmera
# @pyver 3.x
import json
import urllib.request
import time
import sys
import re
import argparse

def coordinates(degree, minute, second):
    return degree + minute/60 + second/3600

timestamp = time.time()
apikey = "00000000000000000000000000000000"
latitude = coordinates(22, 16, 42)
longitude = coordinates(114, 9, 32)
homeFile = r"\\psf\Home\Documents\AHK Scripts\weather\curr.txt"
forecastIOAddress = "https://api.forecast.io/forecast/{0}/{1},{2}?units=si&exclude=hourly,daily,flags".format(apikey, latitude, longitude, timestamp)
HKOAddress = ("http://www.hko.gov.hk/textonly/forecast/englishwx2.htm", "http://www.hko.gov.hk/wxinfo/ts/text_readings_e.htm")
destPlace = r"\\psf\Home\Documents\AHK Scripts\weather\local.htm"
weatherData = {};

## Code below
cmdparse = argparse.ArgumentParser()
cmdparse.add_argument("source", choices=["hko", "fio"])
cmdparse.add_argument("-v", "--verbose", action="store_true", dest="verbose")
cmdparse.add_argument("-n", "--normalized", action="store_true", dest="normalized")
args = vars(cmdparse.parse_args())

if args['source'] == "hko":
    preGrabber = re.compile("</?pre>");
    with urllib.request.urlopen(HKOAddress[0]) as request:
        response = request.read().decode('big5hkscs')
        cutUp = preGrabber.split(response)[1].strip()
        stateValue = re.compile(r"No\. (\d\d?) - ([ \w]+)").search(cutUp)

        weatherData['summary'] = "{0} ({1})".format(stateValue.group(2).strip().title(), stateValue.group(1))
        weatherData['temperature'] = float(re.compile("(\d\d?) degrees Celsius").search(cutUp).group(1))
        weatherData['humidity'] = round(float(re.compile("(\d\d?) per cent").search(cutUp).group(1)) / 100, 2)
    with urllib.request.urlopen(HKOAddress[1]) as request:
        response = request.read().decode('ISO-8859-1')
        cutUp = preGrabber.split(response)[1].strip().splitlines()
        # 66 = Wong Chuk Hang WIND; 71 = HKO Observatory PRESSURE;; 35 ~ 38 are character rangea.
        weatherData['windSpeed'] = round(float(''.join(cutUp[66][35:38]).strip()) / 3.6, 3)
        weatherData['pressure'] =  round(float(''.join(cutUp[71][23:]).strip()), 5)
elif args['source'] == "fio":
    with urllib.request.urlopen(forecastIOAddress) as request:
        response = request.read().decode('utf-8')
        data = json.loads(response)
        weatherData = data['currently']

tempUnit = "°C"
presUnit = "hPa"
if args['normalized']:
    weatherData['temperature'] += 273.15
    weatherData['pressure'] *= 100
    tempUnit = "K"
    presUnit = "Pa"

message = args['source'] + " reports: State: {0[summary]}; T = {0[temperature]} {1}; v = {0[windSpeed]} m/s; Hum = {0[humidity]}; P = {0[pressure]} {2}".format(weatherData, tempUnit, presUnit)
print(message)
with open(homeFile, 'w') as writeTarget:
    writeTarget.write(message)