# L-18 MCS 260 : forecast.py
"""
Sample program to retrieve five day weather forecast from
http://tgftp.nws.noaa.gov/data/forecasts/state/il/ilz013.txt
"""
from urllib.request import urlopen
HOST = 'http://tgftp.nws.noaa.gov'
FCST = '/data/forecasts/state'
URL = HOST + FCST + '/il/ilz013.txt'
print('opening ' + URL + ' ...\n')
with urlopen(URL) as DATA:
    while True:
        LINE = DATA.readline().decode()
        if LINE == '':
            break
        L = LINE.split(' ')
        if 'FCST' in L:
            LINE = DATA.readline().decode()
            print(LINE + DATA.readline().decode())
        if 'Chicago' in L:
            LINE = LINE + DATA.readline().decode()
            LINE = LINE + DATA.readline().decode()
            print(LINE + DATA.readline().decode())