Question

首先要做的事情。我在Python 2.7.2+上运行我的Scrapy脚本（版本：0.16.2）。我遇到的问题是使用MySQLdb库生成的管道文件和SQL语法。这是我试图运行的代码：

class basketpipeline(object):
def __init__(self):
    self.conn = MySQLdb.connect(user="blabla", passwd="blabla", db="basketball", host="blabla")
    self.cursor = self.conn.cursor()

def process_item(self,item, spider):
    #declare variables for item elements
    Game_id=item['game_id']
    Attendance=item['attendance']
    Referees=item['referees']

    #form sql for database implementing variables above into the SQL        
    self.cursor.execute("""INSERT INTO BasketGame (Game_id,Referees,Attendance) VALUES (%s,%s,%s)""", (Game_id,Referees,Attenance))
    self.conn.commit()
    return item

在我运行我的脚本后，我在shell中有这个：

2013-11-14 00:32:59+0200 [scrapy] INFO: Scrapy 0.16.2 started (bot: basketbase)
2013-11-14 00:32:59+0200 [scrapy] DEBUG: Enabled extensions: LogStats, TelnetConsole, 

CloseSpider, WebService, CoreStats, SpiderState
2013-11-14 00:32:59+0200 [scrapy] DEBUG: Enabled downloader middlewares: HttpAuthMiddleware, DownloadTimeoutMiddleware, UserAgentMiddleware, RetryMiddleware, DefaultHeadersMiddleware, RedirectMiddleware, CookiesMiddleware, HttpCompressionMiddleware, ChunkedTransferMiddleware, DownloaderStats
2013-11-14 00:32:59+0200 [scrapy] DEBUG: Enabled spider middlewares: HttpErrorMiddleware, OffsiteMiddleware, RefererMiddleware, UrlLengthMiddleware, DepthMiddleware
2013-11-14 00:32:59+0200 [scrapy] DEBUG: Enabled item pipelines: basketpipeline
2013-11-14 00:32:59+0200 [basketsp] INFO: Spider opened
2013-11-14 00:32:59+0200 [basketsp] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2013-11-14 00:32:59+0200 [scrapy] DEBUG: Telnet console listening on 0.0.0.0:6023
2013-11-14 00:32:59+0200 [scrapy] DEBUG: Web service listening on 0.0.0.0:6080
2013-11-14 00:33:01+0200 [basketsp] DEBUG: Crawled (200) <GET http://www.euroleague.net/main/results/showgame?gamecode=46&s%09code=E2013> (referer: None)
2013-11-14 00:33:01+0200 [basketsp] ERROR: Error processing %(item)s
    Traceback (most recent call last):
      File "/usr/local/lib/python2.7/dist-packages/Scrapy-0.16.2-py2.7.egg/scrapy/middleware.py", line 62, in _process_chain
        return process_chain(self.methods[methodname], obj, *args)
      File "/usr/local/lib/python2.7/dist-packages/Scrapy-0.16.2-py2.7.egg/scrapy/utils/defer.py", line 65, in process_chain
        d.callback(input)
      File "/usr/local/lib/python2.7/dist-packages/Twisted-12.2.0-py2.7-linux-i686.egg/twisted/internet/defer.py", line 368, in callback
        self._startRunCallbacks(result)
      File "/usr/local/lib/python2.7/dist-packages/Twisted-12.2.0-py2.7-linux-i686.egg/twisted/internet/defer.py", line 464, in _startRunCallbacks
        self._runCallbacks()
    --- <exception caught here> ---
      File "/usr/local/lib/python2.7/dist-packages/Twisted-12.2.0-py2.7-linux-i686.egg/twisted/internet/defer.py", line 551, in _runCallbacks
        current.result = callback(current.result, *args, **kw)
      File "/home/vy/basketbase/basketbase/pipelines.py", line 41, in process_item
        self.cursor.execute("""INSERT INTO BasketGame (Game_id,Referees,Attendance) VALUES (%s,%s,%s)""", (Game_id,Referees,Attendance))
      File "/usr/lib/pymodules/python2.7/MySQLdb/cursors.py", line 174, in execute
        self.errorhandler(self, exc, value)
      File "/usr/lib/pymodules/python2.7/MySQLdb/connections.py", line 36, in defaulterrorhandler
        raise errorclass, errorvalue
    _mysql_exceptions.ProgrammingError: (1064, 'You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near \'),("\'BULTO, VICENTE (ESP), SAHIN, TOLGA (ITA), VYKLICKY, ROBERT (CZE)\'",),("\'695\' at line 1')

错误：

`_mysql_exceptions.ProgrammingError: (1064, 'You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near \'),("\'BULTO, VICENTE (ESP), SAHIN, TOLGA (ITA), VYKLICKY, ROBERT (CZE)\'",),("\'695\' at line 1`'

如果我只使用变量（这三个中的任何一个）就可以了，它运行正常，但是当我开始使用两个或更多时，我得到了同样的问题。我试着解决这个问题，阅读文档： http://mysql-python.sourceforge.net/MySQLdb.html

在Stackoverflow中找到了很好的答案： Python MySQL Parameterized Queries

但是如果我使用多个变量，我会收到错误。我知道我可能会错过这里的一些东西，因为我是Python / Scrapy / SQL的新手，但如果有人可以提供帮助，那就太棒了。提前致谢。

Python MySQLdb执行表变量（Scrapy）

0 个答案: