Simple Python script to find traffic times for the next 24 hours

RushHour.py

import googlemaps
from datetime import datetime
import time

start_time = time.time()
# You're going to need your own API key for Google Maps, specificly a distance matrix key.
# See https://github.com/googlemaps/google-maps-services-python for details on obtaining a key.
gmaps = googlemaps.Client(key='')

# Ask for / open the results file to append to
file_loc = raw_input('Enter path to results file: ')
results = open(file_loc, 'a')

# Get Start and End location from user
start = raw_input('Enter starting address: ')
end = raw_input('Enter ending address: ')

results.write("Starting Address: " + start)
results.write("Ending Address: " + end)

# Find the current time since epoch (Midnight 1/1/1970) in seconds to send to google
time_since_epoch = int(time.time())

# Until the user presses ctrl-c...
try:
    # Get the times for a full 24 hours
    for i in range(0, 288):
        directions_result = gmaps.distance_matrix(start, end, mode='driving', units='imperial',
                                                  departure_time=time_since_epoch, traffic_model="pessimistic")
        # Append current time & duration of trip
        current_time = str(datetime.fromtimestamp(time_since_epoch))
        # Write the time and trip duration to file and print to console
        to_write = (
            current_time + ' ' + directions_result['rows'][0]['elements'][0]['duration_in_traffic']['text'] + '\n')
        print(to_write)
        results.write(to_write)
        time_since_epoch += 300
except KeyboardInterrupt:
    results.close()