我写了一个蜘蛛类来爬过eventbrite.com并获取有关Urbana Champaign地区事件的数据。但是我收到了这个错误。你能告诉我这个错误是什么吗？我是scrapy的新手，所以我在这里发帖。你能告诉我如何纠正这个错误吗？
scrapy crawl eventbrite
2015-07-02 17:08:38 [scrapy] INFO: Scrapy 1.0.1 started (bot: tutorial)
2015-07-02 17:08:38 [scrapy] INFO: Optional features available: ssl, http11
2015-07-02 17:08:38 [scrapy] INFO: Overridden settings: {'NEWSPIDER_MODULE': 'tutorial.spiders', 'SPIDER_MODULES': ['tutorial.spiders'], 'BOT_NAME': 'tutorial'}
2015-07-02 17:08:38 [py.warnings] WARNING: :0: UserWarning: You do not have a working installation of the service_identity module: 'No module named service_identity'. Please install it from <https://pypi.python.org/pypi/service_identity> and make sure all of its dependencies are satisfied. Without the service_identity module and a recent enough pyOpenSSL to support it, Twisted can perform only rudimentary TLS client hostname verification. Many valid certificate/hostname mappings may be rejected.
2015-07-02 17:08:38 [scrapy] INFO: Enabled extensions: CloseSpider, TelnetConsole, LogStats, CoreStats, SpiderState
2015-07-02 17:08:38 [scrapy] INFO: Enabled downloader middlewares: HttpAuthMiddleware, DownloadTimeoutMiddleware, UserAgentMiddleware, RetryMiddleware, DefaultHeadersMiddleware, MetaRefreshMiddleware, HttpCompressionMiddleware, RedirectMiddleware, CookiesMiddleware, ChunkedTransferMiddleware, DownloaderStats
2015-07-02 17:08:38 [scrapy] INFO: Enabled spider middlewares: HttpErrorMiddleware, OffsiteMiddleware, RefererMiddleware, UrlLengthMiddleware, DepthMiddleware
2015-07-02 17:08:38 [scrapy] INFO: Enabled item pipelines:
2015-07-02 17:08:38 [scrapy] INFO: Spider opened
2015-07-02 17:08:38 [scrapy] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2015-07-02 17:08:38 [scrapy] DEBUG: Telnet console listening on 127.0.0.1:6023
Error during info_callback
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/protocols/tls.py", line 415, in dataReceived
self._write(bytes)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/protocols/tls.py", line 554, in _write
sent = self._tlsConnection.send(toSend)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1270, in send
result = _lib.SSL_write(self._ssl, buf, len(buf))
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 926, in wrapper
callback(Connection._reverse_mapping[ssl], where, return_code)
--- <exception caught here> ---
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/internet/_sslverify.py", line 1055, in infoCallback
return wrapped(connection, where, ret)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/internet/_sslverify.py", line 1157, in _identityVerifyingInfoCallback
transport = connection.get_app_data()
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1589, in get_app_data
return self._app_data
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1148, in __getattr__
return getattr(self._socket, name)
exceptions.AttributeError: 'NoneType' object has no attribute '_app_data'
2015-07-02 17:08:49 [twisted] CRITICAL: Error during info_callback
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/protocols/tls.py", line 415, in dataReceived
self._write(bytes)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/protocols/tls.py", line 554, in _write
sent = self._tlsConnection.send(toSend)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1270, in send
result = _lib.SSL_write(self._ssl, buf, len(buf))
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 926, in wrapper
callback(Connection._reverse_mapping[ssl], where, return_code)
--- <exception caught here> ---
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/internet/_sslverify.py", line 1055, in infoCallback
return wrapped(connection, where, ret)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/internet/_sslverify.py", line 1157, in _identityVerifyingInfoCallback
transport = connection.get_app_data()
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1589, in get_app_data
return self._app_data
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1148, in __getattr__
return getattr(self._socket, name)
exceptions.AttributeError: 'NoneType' object has no attribute '_app_data'
From cffi callback <function infoCallback at 0x106e78a28>:
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 926, in wrapper
callback(Connection._reverse_mapping[ssl], where, return_code)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/internet/_sslverify.py", line 1059, in infoCallback
connection.get_app_data().failVerification(f)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1589, in get_app_data
return self._app_data
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1148, in __getattr__
return getattr(self._socket, name)
AttributeError: 'NoneType' object has no attribute '_app_data'
Error during info_callback
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/protocols/tls.py", line 415, in dataReceived
self._write(bytes)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/protocols/tls.py", line 554, in _write
sent = self._tlsConnection.send(toSend)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1270, in send
result = _lib.SSL_write(self._ssl, buf, len(buf))
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 926, in wrapper
callback(Connection._reverse_mapping[ssl], where, return_code)
--- <exception caught here> ---
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/internet/_sslverify.py", line 1055, in infoCallback
return wrapped(connection, where, ret)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/internet/_sslverify.py", line 1157, in _identityVerifyingInfoCallback
transport = connection.get_app_data()
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1589, in get_app_data
return self._app_data
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1148, in __getattr__
return getattr(self._socket, name)
exceptions.AttributeError: 'NoneType' object has no attribute '_app_data'
2015-07-02 17:08:49 [twisted] CRITICAL: Error during info_callback
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/protocols/tls.py", line 415, in dataReceived
self._write(bytes)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/protocols/tls.py", line 554, in _write
sent = self._tlsConnection.send(toSend)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1270, in send
result = _lib.SSL_write(self._ssl, buf, len(buf))
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 926, in wrapper
callback(Connection._reverse_mapping[ssl], where, return_code)
--- <exception caught here> ---
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/internet/_sslverify.py", line 1055, in infoCallback
return wrapped(connection, where, ret)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/internet/_sslverify.py", line 1157, in _identityVerifyingInfoCallback
transport = connection.get_app_data()
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1589, in get_app_data
return self._app_data
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1148, in __getattr__
return getattr(self._socket, name)
exceptions.AttributeError: 'NoneType' object has no attribute '_app_data'
From cffi callback <function infoCallback at 0x103b1c9b0>:
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 926, in wrapper
callback(Connection._reverse_mapping[ssl], where, return_code)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/internet/_sslverify.py", line 1059, in infoCallback
connection.get_app_data().failVerification(f)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1589, in get_app_data
return self._app_data
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/OpenSSL/SSL.py", line 1148, in __getattr__
return getattr(self._socket, name)
AttributeError: 'NoneType' object has no attribute '_app_data'
2015-07-02 17:08:51 [scrapy] DEBUG: Crawled (200) <GET https://www.eventbrite.com/d/il--urbana/events/?crt=regular&sort=date> (referer: None)
2015-07-02 17:08:51 [scrapy] DEBUG: Crawled (200) <GET https://www.eventbrite.com/d/il--champaign/events/?crt=regular&sort=date> (referer: None)
2015-07-02 17:08:51 [scrapy] INFO: Closing spider (finished)
2015-07-02 17:08:51 [scrapy] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 519,
'downloader/request_count': 2,
'downloader/request_method_count/GET': 2,
'downloader/response_bytes': 55279,
'downloader/response_count': 2,
'downloader/response_status_count/200': 2,
'finish_reason': 'finished',
'finish_time': datetime.datetime(2015, 7, 2, 11, 38, 51, 775192),
'log_count/CRITICAL': 2,
'log_count/DEBUG': 3,
'log_count/INFO': 7,
'log_count/WARNING': 1,
'response_received_count': 2,
'scheduler/dequeued': 2,
'scheduler/dequeued/memory': 2,
'scheduler/enqueued': 2,
'scheduler/enqueued/memory': 2,
'start_time': datetime.datetime(2015, 7, 2, 11, 38, 38, 972701)}
2015-07-02 17:08:51 [scrapy] INFO: Spider closed (finished)
答案 0 :(得分：0)
在这里看一下答案：https://stackoverflow.com/a/30203408/3941341
您的堆栈跟踪似乎与其他问题中的堆栈跟踪非常相似。
Scrapy-bug仍然开放：https://github.com/scrapy/scrapy/issues/1227