# import a library for openning URL
import urllib.request

# prepare URL to be opened
filename = 'index.html'
url = 'http://cs1110.cs.virginia.edu/' + filename

# let's look at the URL
print("url = " + url)

# open the specified URL to read
# store the response object received from the server in a variable
stream = urllib.request.urlopen(url)
# print(stream)   # http.client.HTTPResponse object

# Tips:
# - Instead of "open()" when opening a file,
#   we use "urlopen()" when opening a url
# - Once opening a url, we must decode the data
#   -- unlike reading the file, we can simply read() or readline()

print("\n==== Start processing data ==== \n")


# read each line from the response object
for line in stream:

    # decode the string using the standard encoding scheme (UTF-8)
    # then, strip leading and tailing spaces, and split the string using ","
    decoded_data = line.decode("UTF-8").strip()
    print(decoded_data)