Python scrapy爬取163新闻exceptions.NameError问题，,items.pyimpo

Python scrapy爬取163新闻exceptions.NameError问题，,items.pyimpo

items.py

import scrapyclass News163Item(scrapy.Item):    title = scrapy.Field()    url = scrapy.Field()    source = scrapy.Field()    content = scrapy.Field()

news_spider.py

#coding:utf-8from scrapy.contrib.linkextractors import LinkExtractorfrom scrapy.contrib.spiders import CrawlSpider,Ruleclass ExampleSpider(CrawlSpider):    name = "news"    allowed_Domains = ["news.163.com"]    start_urls = ['http://news.163.com/']    rules = [        Rule(LinkExtractor(allow=r"/14/12\d+/\d+/*"),        'parse_news')    ]def parse_news(self,response):    news = News163Item()    news['title'] = response.xpath("//*[@id="h1title"]/text()").extract()    news['source'] = response.xpath("//*[@id="ne_article_source"]/text()").extract()    news['content'] = response.xpath("//*[@id="endText"]/text()").extract()    news['url'] = response.url    return news

cd进入所在目录后，命令行执行：

scrapy crawl news -o news163.json

会跳出如下错误：

Traceback (most recent call last):  File "/usr/bin/scrapy", line 9, in <module>    load_entry_point('Scrapy==0.24.4', 'console_scripts', 'scrapy')()  File "/usr/lib/pymodules/python2.7/scrapy/cmdline.py", line 143, in execute    _run_print_help(parser, _run_command, cmd, args, opts)  File "/usr/lib/pymodules/python2.7/scrapy/cmdline.py", line 89, in _run_print_help    func(*a, **kw)  File "/usr/lib/pymodules/python2.7/scrapy/cmdline.py", line 150, in _run_command    cmd.run(args, opts)  File "/usr/lib/pymodules/python2.7/scrapy/commands/crawl.py", line 57, in run    crawler = self.crawler_process.create_crawler()  File "/usr/lib/pymodules/python2.7/scrapy/crawler.py", line 87, in create_crawler    self.crawlers[name] = Crawler(self.settings)  File "/usr/lib/pymodules/python2.7/scrapy/crawler.py", line 25, in __init__    self.spiders = spman_cls.from_crawler(self)  File "/usr/lib/pymodules/python2.7/scrapy/spidermanager.py", line 35, in from_crawler    sm = cls.from_settings(crawler.settings)  File "/usr/lib/pymodules/python2.7/scrapy/spidermanager.py", line 31, in from_settings    return cls(settings.getlist('SPIDER_MODULES'))  File "/usr/lib/pymodules/python2.7/scrapy/spidermanager.py", line 22, in __init__    for module in walk_modules(name):  File "/usr/lib/pymodules/python2.7/scrapy/utils/misc.py", line 68, in walk_modules    submod = import_module(fullpath)  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module    __import__(name)  File "/home/gao/news/news/spiders/news_spider.py", line 15    news['title'] = response.xpath("//*[@id="h1title"]/text()").extract()                                                   ^SyntaxError: invalid syntax

请问是哪里出错了？python新手，scrapy也是最近才用的，很生疏，求指点。

谢谢：@捏造的信仰 的回答,但是更改过之后，还是有错误。

2014-12-02 20:13:02+0800 [news] ERROR: Spider error processing <GET http://lady.163.com/14/1201/09/ACCAN4MB002649P6.html>    Traceback (most recent call last):      File "/usr/lib/python2.7/dist-packages/twisted/internet/base.py", line 824, in runUntilCurrent        call.func(*call.args, **call.kw)      File "/usr/lib/python2.7/dist-packages/twisted/internet/task.py", line 638, in _tick        taskObj._oneWorkUnit()      File "/usr/lib/python2.7/dist-packages/twisted/internet/task.py", line 484, in _oneWorkUnit        result = next(self._iterator)      File "/usr/lib/pymodules/python2.7/scrapy/utils/defer.py", line 57, in <genexpr>        work = (callable(elem, *args, **named) for elem in iterable)    --- <exception caught here> ---      File "/usr/lib/pymodules/python2.7/scrapy/utils/defer.py", line 96, in iter_errback        yield next(it)      File "/usr/lib/pymodules/python2.7/scrapy/contrib/spidermiddleware/offsite.py", line 26, in process_spider_output        for x in result:      File "/usr/lib/pymodules/python2.7/scrapy/contrib/spidermiddleware/referer.py", line 22, in <genexpr>        return (_set_referer(r) for r in result or ())      File "/usr/lib/pymodules/python2.7/scrapy/contrib/spidermiddleware/urllength.py", line 33, in <genexpr>        return (r for r in result or () if _filter(r))      File "/usr/lib/pymodules/python2.7/scrapy/contrib/spidermiddleware/depth.py", line 50, in <genexpr>        return (r for r in result or () if _filter(r))      File "/usr/lib/pymodules/python2.7/scrapy/contrib/spiders/crawl.py", line 67, in _parse_response        cb_res = callback(response, **cb_kwargs) or ()      File "/home/gao/news/news/spiders/news_spider.py", line 14, in parse_news        news = News163Item()    exceptions.NameError: global name 'News163Item' is not defined

请问这又是什么原因呢？

news['title'] = response.xpath("//*[@id=\"h1title\"]/text()").extract()

news['title'] = response.xpath("//*[@id='h1title']/text()").extract()

编橙之家文章，