''' Purpose: determine a rough estimate of the geocenter of the
        continental USA
'''

# get access to web-based data support
import url

# specify dataset web location
CSV_WEB_FOLDER = 'http://www.cs.virginia.edu/~cs1112/datasets/csv/'

USA_DATASET    = CSV_WEB_FOLDER + 'continental-usa.csv'

# get the dataset of interest
dataset = url.get_dataset( USA_DATASET )

# determine webfile header and location data
header    = dataset[ 0 ]
locations = dataset[ 1 : ]

# determine geocenter

# a loop that might be helpful for solving the problem
for entry in locations :
    zipcode, town, state, latitude, longitude = entry