Scraper for wholesale fish market prices in Trinidad and Tobago

namis_scraper.py

from lxml import html
import requests
import time

date = time.strftime('%d-%m-%Y')
output = ''

try:
    page = requests.get('http://www.namistt.com/')
except requests.exceptions.RequestException as e:
    print 'Could not reach the website:'
    raise e

tree = html.fromstring(page.text)
price_tables = tree.get_element_by_id('tbl')

print 'Retrieving table data'
for row in price_tables.findall('.//tr'):
    row = [r.xpath('./text()')[0].strip() for r in row]
    if row[2]:
        print row
        output += ','.join(row) + '\n'

f = open('NAMIS Wholesale Fish Market Prices {0}.csv'.format(date), 'w')
print 'Writing to file'
f.write(output)
f.close()
print 'Done!'