Error de canalización mysql scrappy

Estoy usando scrapy y estoy tratando de guardar los datos raspados de una araña en una base de datos MySql. Estoy usando una canalización para lograr esto, pero sin suerte. Aquí está mi código para la canalización:

from scrapy import log
from scrapy.core.exceptions import DropItem
from twisted.enterprise import adbapi

import time
import MySQLdb.cursors

class FilterWordsPipeline(object):
"""A pipeline for filtering out items which contain certain words in their
description"""

# put all words in lowercase
words_to_filter = ['politics', 'religion']

def process_item(self, spider, item):
    print spider
    for word in self.words_to_filter:
        if word in unicode(item['description']).lower():
            raise DropItem("Contains forbidden word: %s" % word)
    else:
        return item

class MySQLStorePipeline(object):

def __init__(self):
    # @@@ hardcoded db settings
    # TODO: make settings configurable through settings
    self.dbpool = adbapi.ConnectionPool('adress_to_db',
            db='my_db',
            user='my_user',
            passwd='my_pw',
            cursorclass=MySQLdb.cursors.DictCursor,
            charset='utf8',
            use_unicode=True
        )

def process_item(self, spider, item):
    # run db query in thread pool
    query = self.dbpool.runInteraction(self._conditional_insert, item)
    query.addErrback(self.handle_error)

    return item

def _conditional_insert(self, tx, item):
    # create record if doesn't exist. 
    # all this block run on it's own thread
    tx.execute("select * from scrapytest where link = %s", (item['link'][0], ))
    result = tx.fetchone()
    if result:
        log.msg("Item already stored in db: %s" % item, level=log.DEBUG)
    else:
        tx.execute(\
            "insert into scrapytest (title, link, desc) "
            "values (%s, %s, %s)",
            (item['title'][0],
             item['link'][0],
             item['desc'][0]
        )
        log.msg("Item stored in db: %s" % item, level=log.DEBUG)

def handle_error(self, e):
    log.err(e) 

Y aquí está el mensaje de error que recibo:

SyntaxError: invalid syntax
PS C:\Python27\testscrapy\tutorial> scrapy crawl dmoz
2012-05-03 16:03:11+0200 [scrapy] INFO: Scrapy 0.14.3 started (bot: tutorial)
2012-05-03 16:03:12+0200 [scrapy] DEBUG: Enabled extensions: LogStats, TelnetConsole,                        
CloseSpider, WebService, CoreStats
 , SpiderState
2012-05-03 16:03:12+0200 [scrapy] DEBUG: Enabled downloader middlewares: HttpAuthMiddleware,                           
DownloadTimeoutMiddleware,
UserAgentMiddleware, RetryMiddleware, DefaultHeadersMiddleware, RedirectMiddleware,     
CookiesMiddleware, HttpCompressionMi
ddleware, ChunkedTransferMiddleware, DownloaderStats
2012-05-03 16:03:12+0200 [scrapy] DEBUG: Enabled spider middlewares: HttpErrorMiddleware,        
OffsiteMiddleware, RefererMidd
leware, UrlLengthMiddleware, DepthMiddleware
Traceback (most recent call last):
File "C:\Python27\Scripts\scrapy", line 5, in <module>
pkg_resources.run_script('Scrapy==0.14.3', 'scrapy')
File "C:\Python27\lib\site-packages\pkg_resources.py", line 489, in run_script
self.require(requires)[0].run_script(script_name, ns)
File "C:\Python27\lib\site-packages\pkg_resources.py", line 1207, in run_script
execfile(script_filename, namespace, namespace)
File "c:\python27\lib\site-packages\scrapy-0.14.3-py2.7-win32.egg\EGG-INFO\scripts\scrapy", line   
4, in <module>
execute()
File "C:\Python27\lib\site-packages\scrapy-0.14.3-py2.7-win32.egg\scrapy\cmdline.py", line 132,   
in execute
run_print_help(parser, _run_command, cmd, args, opts)
File "C:\Python27\lib\site-packages\scrapy-0.14.3-py2.7-win32.egg\scrapy\cmdline.py", line 97, in   
_run_print_help
func(*a, **kw)
File "C:\Python27\lib\site-packages\scrapy-0.14.3-py2.7-win32.egg\scrapy\cmdline.py", line 139,   
in _run_command
cmd.run(args, opts)
File "C:\Python27\lib\site-packages\scrapy-0.14.3-py2.7-win32.egg\scrapy\commands\crawl.py", line   
43, in run
spider = self.crawler.spiders.create(spname, **opts.spargs)
File "C:\Python27\lib\site-packages\scrapy-0.14.3-py2.7-win32.egg\scrapy\command.py", line 34,   
in crawler
self._crawler.configure()
File "C:\Python27\lib\site-packages\scrapy-0.14.3-py2.7-win32.egg\scrapy\crawler.py", line 37, in   
configure
self.engine = ExecutionEngine(self, self._spider_closed)
File "C:\Python27\lib\site-packages\scrapy-0.14.3-py2.7-win32.egg\scrapy\core\engine.py", line   
62, in __init__
self.scraper = Scraper(crawler)
File "C:\Python27\lib\site-packages\scrapy-0.14.3-py2.7-win32.egg\scrapy\core\scraper.py", line   
68, in __init__
self.itemproc = itemproc_cls.from_crawler(crawler)
File "C:\Python27\lib\site-packages\scrapy-0.14.3-py2.7-win32.egg\scrapy\middleware.py", line 48,   
in from_crawler
return cls.from_settings(crawler.settings, crawler)
File "C:\Python27\lib\site-packages\scrapy-0.14.3-py2.7-win32.egg\scrapy\middleware.py", line 29,   
in from_settings
mwcls = load_object(clspath)
File "C:\Python27\lib\site-packages\scrapy-0.14.3-py2.7-win32.egg\scrapy\utils\misc.py", line 37,  
in load_object
mod = __import__(module, {}, {}, [''])
File "C:\Python27\testscrapy\tutorial\tutorial\pipelines.py", line 64
log.msg("Item stored in db: %s" % item, level=log.DEBUG)
  ^
SyntaxError: invalid syntax

No tengo idea de por dónde empezar aquí, ¡así que cualquier ayuda es realmente apreciada!