Python zu lernen und auch scrapy ..getting diesen Fehler

Question

ich gehe durch die scrapy Tutorial http://doc.scrapy.org/en/latest/intro/tutorial.html und ich folgte, sie umzusetzen versuchen, bis ich diesen Befehl lief

scrapy crawl dmoz 

Und es gab mir Ausgang mit einem Fehler

2013-08-25 13:11:42-0700 [scrapy] INFO: Scrapy 0.18.0 started (bot: tutorial) 
2013-08-25 13:11:42-0700 [scrapy] DEBUG: Optional features available: ssl, http11 
2013-08-25 13:11:42-0700 [scrapy] DEBUG: Overridden settings: {'NEWSPIDER_MODULE': 'tutorial.spiders', 'SPIDER_MODULES': ['tutorial.spiders'], 'BOT_NAME': 'tutorial'} 
2013-08-25 13:11:42-0700 [scrapy] DEBUG: Enabled extensions: LogStats, TelnetConsole, CloseSpider, WebService, CoreStats, SpiderState 
Traceback (most recent call last): 
    File "/usr/local/bin/scrapy", line 4, in <module> 
    execute() 
    File "/Library/Python/2.7/site-packages/scrapy/cmdline.py", line 143, in execute 
    _run_print_help(parser, _run_command, cmd, args, opts) 
    File "/Library/Python/2.7/site-packages/scrapy/cmdline.py", line 88, in _run_print_help 
    func(*a, **kw) 
    File "/Library/Python/2.7/site-packages/scrapy/cmdline.py", line 150, in _run_command 
    cmd.run(args, opts) 
    File "/Library/Python/2.7/site-packages/scrapy/commands/crawl.py", line 46, in run 
    spider = self.crawler.spiders.create(spname, **opts.spargs) 
    File "/Library/Python/2.7/site-packages/scrapy/command.py", line 34, in crawler 
    self._crawler.configure() 
    File "/Library/Python/2.7/site-packages/scrapy/crawler.py", line 44, in configure 
    self.engine = ExecutionEngine(self, self._spider_closed) 
    File "/Library/Python/2.7/site-packages/scrapy/core/engine.py", line 62, in __init__ 
    self.downloader = Downloader(crawler) 
    File "/Library/Python/2.7/site-packages/scrapy/core/downloader/__init__.py", line 73, in __init__ 
    self.handlers = DownloadHandlers(crawler) 
    File "/Library/Python/2.7/site-packages/scrapy/core/downloader/handlers/__init__.py", line 18, in __init__ 
    cls = load_object(clspath) 
    File "/Library/Python/2.7/site-packages/scrapy/utils/misc.py", line 38, in load_object 
    mod = __import__(module, {}, {}, ['']) 
    File "/Library/Python/2.7/site-packages/scrapy/core/downloader/handlers/s3.py", line 4, in <module> 
    from .http import HTTPDownloadHandler 
    File "/Library/Python/2.7/site-packages/scrapy/core/downloader/handlers/http.py", line 5, in <module> 
    from .http11 import HTTP11DownloadHandler as HTTPDownloadHandler 
    File "/Library/Python/2.7/site-packages/scrapy/core/downloader/handlers/http11.py", line 13, in <module> 
    from scrapy.xlib.tx import Agent, ProxyAgent, ResponseDone, \ 
    File "/Library/Python/2.7/site-packages/scrapy/xlib/tx/__init__.py", line 6, in <module> 
    from . import client, endpoints 
    File "/Library/Python/2.7/site-packages/scrapy/xlib/tx/client.py", line 37, in <module> 
    from .endpoints import TCP4ClientEndpoint, SSL4ClientEndpoint 
    File "/Library/Python/2.7/site-packages/scrapy/xlib/tx/endpoints.py", line 222, in <module> 
    interfaces.IProcessTransport, '_process')): 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/zope/interface/declarations.py", line 495, in __call__ 
    raise TypeError("Can't use implementer with classes. Use one of " 
TypeError: Can't use implementer with classes. Use one of the class-declaration functions instead. 

ich bin nicht sehr vertraut mit python und ich bin nicht sicher, was es über

hier beschwert ist meine domz_spider.py Datei

from scrapy.spider import BaseSpider 

class DmozSpider(BaseSpider): 
    name = "dmoz" 
    allowed_domains = ["dmoz.org"] 
    start_urls = [ 
     "http://www.dmoz.org/Computers/Programming/Languages/Python/Books/", 
     "http://www.dmoz.org/Computers/Programming/Languages/Python/Resources/" 
    ] 

    def parse(self, response): 
     filename = response.url.split("/")[-2] 
     open(filename, 'wb').write(response.body) 

And here is my items file 

# Define here the models for your scraped items 
# 
# See documentation in: 
# http://doc.scrapy.org/en/latest/topics/items.html 

from scrapy.item import Item, Field 

    class DmozItem(Item): 
     title = Field() 
     link = Field() 
     desc = Field() 

und hier ist die Verzeichnisstruktur

scrapy.cfg 
tutorial/ 
tutorial/items.py 
tutorial/pipelines.py 
tutorial/settings.py 
tutorial/spiders/ 
tutorial/spiders/domz_spider.py 

hier ist die Datei settings.py

BOT_NAME = 'tutorial' 

    SPIDER_MODULES = ['tutorial.spiders'] 
    NEWSPIDER_MODULE = 'tutorial.spiders' 

Answer 1

ok ich das Problem dadurch

sudo pip installieren Festsetzung irgendwie gefunden - -upgrade zope.interface

Ich bin nicht sicher, was passiert ist, sobald dieser Befehl ausgegeben, aber das löste mein Problem und jetzt sehe ich das

2013-08-25 13:30:05-0700 [scrapy] INFO: Scrapy 0.18.0 started (bot: tutorial) 
2013-08-25 13:30:05-0700 [scrapy] DEBUG: Optional features available: ssl, http11 
2013-08-25 13:30:05-0700 [scrapy] DEBUG: Overridden settings: {'NEWSPIDER_MODULE': 'tutorial.spiders', 'SPIDER_MODULES': ['tutorial.spiders'], 'BOT_NAME': 'tutorial'} 
2013-08-25 13:30:05-0700 [scrapy] DEBUG: Enabled extensions: LogStats, TelnetConsole, CloseSpider, WebService, CoreStats, SpiderState 
2013-08-25 13:30:05-0700 [scrapy] DEBUG: Enabled downloader middlewares: HttpAuthMiddleware, DownloadTimeoutMiddleware, UserAgentMiddleware, RetryMiddleware, DefaultHeadersMiddleware, MetaRefreshMiddleware, HttpCompressionMiddleware, RedirectMiddleware, CookiesMiddleware, ChunkedTransferMiddleware, DownloaderStats 
2013-08-25 13:30:05-0700 [scrapy] DEBUG: Enabled spider middlewares: HttpErrorMiddleware, OffsiteMiddleware, RefererMiddleware, UrlLengthMiddleware, DepthMiddleware 
2013-08-25 13:30:05-0700 [scrapy] DEBUG: Enabled item pipelines: 
2013-08-25 13:30:05-0700 [dmoz] INFO: Spider opened 
2013-08-25 13:30:05-0700 [dmoz] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min) 
2013-08-25 13:30:05-0700 [scrapy] DEBUG: Telnet console listening on 0.0.0.0:6023 
2013-08-25 13:30:05-0700 [scrapy] DEBUG: Web service listening on 0.0.0.0:6080 
2013-08-25 13:30:06-0700 [dmoz] DEBUG: Crawled (200) <GET http://www.dmoz.org/Computers/Programming/Languages/Python/Books/> (referer: None) 
2013-08-25 13:30:06-0700 [dmoz] DEBUG: Crawled (200) <GET http://www.dmoz.org/Computers/Programming/Languages/Python/Resources/> (referer: None) 
2013-08-25 13:30:06-0700 [dmoz] INFO: Closing spider (finished) 
2013-08-25 13:30:06-0700 [dmoz] INFO: Dumping Scrapy stats: 
    {'downloader/request_bytes': 530, 
    'downloader/request_count': 2, 
    'downloader/request_method_count/GET': 2, 
    'downloader/response_bytes': 14738, 
    'downloader/response_count': 2, 
    'downloader/response_status_count/200': 2, 
    'finish_reason': 'finished', 
    'finish_time': datetime.datetime(2013, 8, 25, 20, 30, 6, 559375), 
    'log_count/DEBUG': 10, 
    'log_count/INFO': 4, 
    'response_received_count': 2, 
    'scheduler/dequeued': 2, 
    'scheduler/dequeued/memory': 2, 
    'scheduler/enqueued': 2, 
    'scheduler/enqueued/memory': 2, 
    'start_time': datetime.datetime(2013, 8, 25, 20, 30, 5, 664310)} 
2013-08-25 13:30:06-0700 [dmoz] INFO: Spider closed (finished)