aqi-tracker.py

import getopt
import sys

import requests


def main(argv):
    def usage():
        print("usage: %s [-c city] [-a accesstoken] [-h help] ...") % argv[0]
        return 100

    try:
        (opts, args) = getopt.getopt(argv[1:], "c:a:h")
    except getopt.GetoptError:
        return usage()

    def help():
        print(
            "AQI Tracker -"
            "\tLets the user know the real-time air quality values"
            "\t\t(usage: %s [-c city] [-a accesstoken] [-h help])"
            "\ncity:\t\tname of the cit"
            "\naccesstoken:\tYou need to get access token by "
            "registering on http://aqicn.org/data-platform/register/"
            "\n\t\t*if no accesstoken provided then demo accesstoken will"
            " be used \n\t\tand with demo access token only Shanghai's"
            " air quality values can be retrieved."
        )

    city = "shanghai"
    accesstoken = "demo"

    for (k, v) in opts:
        if k == "-c":
            city = v
        elif k == "-a":

            accesstoken = v
        elif k == "-h":

            return help()

    url = "http://api.waqi.info/feed/" + city + "/?token=" + accesstoken
    print("URL: ", url)

    r = requests.get(url, auth=("user", "pass"))

    if r.status_code == 200:
        data = r.json()
        value = data["data"]["iaqi"]["pm25"]["v"]
        toDisplay = str(value)

        if value > 0 and value < 50:
            print("Air Quality Alert ->")
            print("Current Value: Healthy - " + toDisplay)
        elif value > 50 and value < 100:
            print("Air Quality Alert ->")
            print("Current Value: Moderate - " + toDisplay)
        elif value > 100 and value < 150:
            print("Air Quality Alert ->")
            print("Current Value: Sensitive - " + toDisplay)
        elif value > 150 and value < 200:
            print("Air Quality Alert ->")
            print("Current Value: UnHealhty - " + toDisplay)
        elif value > 200 and value < 250:
            print("Air Quality Alert ->")
            print("Current Value: UnHealthy - " + toDisplay)
        elif value > 250 and value > 300:
            print("Air Quality Alert ->")
            print("Current Value: Hazardous - " + toDisplay)
    else:

        print("Error: Unable to connect to server")


if __name__ == "__main__":
    sys.exit(main(sys.argv))