''' Purpose: get the contents of a CSV file
'''

# get access to python web resources
import urllib.request

# name the location of the data repository
BASE_URL = 'http://www.cs.virginia.edu/~cs1112/datasets/csv/'

# get the name of the dataset
reply = input( 'Enter the name of a dataset: ' )

name = reply.strip()

# specify where in the repository we can find the dataset
web_file = BASE_URL + name

# connect the program to the web resource
stream = urllib.request.urlopen( web_file )

# read the web resource
contents = stream.read()

# decode text to put in standard form
text = contents.decode( 'UTF-8')

# clean up text
text = text.strip()

# split text into a list of lines
lines = text.split( '\n' ) 

# convert lines to rows pf data
dataset = [] 

# need to process each line
for line in lines:
    # clean up line
    line = line.strip()

    # split the line's comma-separated values into a list of data elements
    csv_line = line.split( ',' )

    # add another row of data to the dataset
    dataset.append( csv_line )

# show the dataset
for row in dataset :
    print( row )