Search keywords from a CSV file and put resulting links matching a certain criteria in another CSV file

gsearch.py

import csv
import sys
import mechanize
import cookielib
import re
import time

# Creates a Browser instance
# and defines its headers
def createBrowser():
    # Browser
    br = mechanize.Browser()

    # Cookie Jar
    cj = cookielib.LWPCookieJar()
    br.set_cookiejar(cj)

    # Browser options
    br.set_handle_equiv(True)
    br.set_handle_gzip(True)
    br.set_handle_redirect(True)
    br.set_handle_referer(True)
    br.set_handle_robots(False)

    # Follows refresh 0 but not hangs on refresh > 0
    br.set_handle_refresh(mechanize._http.HTTPRefreshProcessor(), max_time=1)

    # User-Agent (this is cheating, ok?)
    br.addheaders = [('User-agent', 'Mozilla/5.0 (X11; U; Linux i686; es-ES; rv:1.9.0.1) Gecko/2008071615 Fedora/3.0.1-1.fc9 Firefox/3.0.1')]
    return br
   
# Given a Browser a keyword and the ids
# returns an array containing the ids,the keyword and the
# google results
def search(br, keyword, ids):
    # Create the variable where we will put the result
    result = []
    # Open google.com
    r = br.open('http://google.com')
    # Select the first (index zero) form
    br.select_form(nr=0)
    # Insert the query in the form
    br.form['q'] = keyword
    # Submit the form
    br.submit()
    # First column of the result will be the IDS
    result.append(ids)
    # Second column of the result will be the keyword
    result.append(keyword)
    # Looking at some results in link format
    for l in br.links(url_regex = "(?P<url>https?://(.*)\.facebook[^\s]+)"):
        # Try to get the result links cleaned
        try:
            # Apply regex to the result to clean it, put it in the result array
            result.append(re.search("(?P<url>https://[^\s]+)", l.url).group("url")) 
        except: 
            # There where no results matching our criteria, we will pass
            pass
    # Return the resulting array
    return result

# Main place where everything takes place
def main(argv):
    # Create a browser
    br = createBrowser()
    # Open the CSV file to write into
    ofile  = open(argv[1], "wb")
    writer = csv.writer(ofile,delimiter=';')
    # Boolean to check if we have the result
    gotResult = False
    # Open the file we read from
    with open(argv[0], 'rb') as csvfile:
        reader = csv.reader(csvfile, delimiter=';', quotechar='|')
        for row in reader:
            # Loop until we get some result (which can be empty)
            while not gotResult:
                try:    
                    # Search for the keyword with the browser and the IDS
                    line = search(br,row[1]+' '+row[2]+" facebook",row[0])
                    # If we got here we have the result
                    gotResult = True
                # We might have got an error while trying
                except mechanize.URLError as e:
                    print e.reason
                    print "Error retrieving information from Google"
                    print "Sleeping 30 seconds and trying again"    
                    # Give it a rest
                    time.sleep(30)
            print line
            # Write the resulting row into the file
            writer.writerow(line)
            # Reset variable
            gotResult = False
            # Pretend to be human
            time.sleep(1)

if __name__ == "__main__":
    main(sys.argv[1:])