Read Weather Underground for DateTime and return sky condition

main.py

import sys
from pprint import pprint
import arrow
from WunderWeather import weather

def eclipse_conditions(api_key, lat, lng, start_time_utc, end_time_utc):
    if (start_time_utc > end_time_utc):
        raise Exception('Start time must be less than end time')
    extractor = weather.Extract(api_key)
    location = "{0},{1}".format(lat, lng)
    date_fmt = "YYYYMMDDhhmm"
    response = extractor.date(location, start_time_utc.format(date_fmt))
    conditions = []

    if response.observations is None:
        return conditions

    for observation in response.observations:
        obs = observation.data.utcdate
        utc_date_str = "{0}{1}{2}{3}{4}".format(obs.year, obs.mon, obs.mday, obs.hour, obs.min)
        obs_date_utc = arrow.get(utc_date_str, date_fmt)
        if start_time_utc <= obs_date_utc <= end_time_utc:
            match_date = obs_date_utc.format("YYYY-MM-DD hhmm")
            current_condition = match_date, observation.data.conds
            conditions.append(current_condition)
    return conditions

def print_conditions(conditions):
    for current_condition in conditions:
        if current_condition[1] not in ['Clear', 'Unknown']:
            pprint("OH NOES! {0} sky was {1}".format(current_condition[0], current_condition[1]))
        else:
            pprint("YAY! {0} sky was {1}".format(current_condition[0], current_condition[1]))
    if len(conditions) == 0:
        pprint("NO OBSERVATIONS")

def main():
    api_key = 'YOUR API KEY'
    lat = 32
    lng = -97

    # Overcast
    start = arrow.get("1985-03-15 1400", "YYYY-MM-DD hhmm")
    end = arrow.get("1985-03-15 1500", "YYYY-MM-DD hhmm")
    conditions = eclipse_conditions(api_key, lat, lng, start, end)
    print_conditions(conditions)

    # Unknown
    start = arrow.get("1995-06-15 1400", "YYYY-MM-DD hhmm")
    end = arrow.get("1995-06-15 1500", "YYYY-MM-DD hhmm")
    conditions = eclipse_conditions(api_key, lat, lng, start, end)
    print_conditions(conditions)

    # No Observations
    lat = 36.1699
    lng = -115.13
    conditions = eclipse_conditions(api_key, lat, lng, start, end)
    print_conditions(conditions)

    # San Francisco
    lat = 37.7749
    lng = -122.4194
    conditions = eclipse_conditions(api_key, lat, lng, start, end)
    print_conditions(conditions)

    # Cleveland 12 hours ago
    lat = 41.4993
    lng = -81.6944
    start = arrow.utcnow().shift(hours=-12)
    end = start.shift(hours=1)
    conditions = eclipse_conditions(api_key, lat, lng, start, end)
    print_conditions(conditions)

    # Cleveland last hour
    start = arrow.utcnow().shift(hours=-1)
    end = start.shift(hours=1)
    conditions = eclipse_conditions(api_key, lat, lng, start, end)
    print_conditions(conditions)


if __name__ == "__main__":
    print('Starting {0}'.format(str(sys.argv)))
    main()