birdnames = """\ Common Teal Long-tailed Duck Little Grebe Albatross Flamingo Heron Stork Shoebill Vulture Bald Eagle""".splitlines() states = """Kentucky Missouri Kansas Maine Michigan New York""".splitlines() print states print birdnames import random, datetime def generate_random_day(year): doy = int(random.gauss(200, 50)) doy = min(doy, 365) doy = max(doy, 1) datestr = "%s %s" % (doy, year) date = datetime.datetime.strptime(datestr, "%j %Y") new_date = date.strftime("%B %d") return new_date.lower() generate_random_day(2013) def generate_random_observation(): bird = random.choice(birdnames).lower() state = random.choice(states).lower() day = generate_random_day(2013) return (bird, state, day) bird, state, day = generate_random_observation() print bird + '/' + state + '/' + day import csv fp = file('long-birds.csv', 'w') w = csv.writer(fp) for i in range(10000): row = generate_random_observation() w.writerow(row) fp.close() list(open('long-birds.csv'))[:10] pwd