Question

我有这个简单的蜘蛛，当我调用scrapy crawl dataspider它工作正常并在输出中打印项目时：

import json
from scrapy.spiders import Spider

class dataspider(Spider):
    name='dataspider'
    start_urls=('https://www.google.com/finance/match?matchtype=matchall&ei=UVlPWNmDEYm_U7SqgvAH&q=AAPL',)
    def parse(self, response):
        j=json.loads( response.body.decode('utf-8') )
        yield j['matches'][1]

输出：

{＆＃39;＆＃39; AAPL＆＃39;＆＃39; n＆＃39;：＆＃39; Apple Inc.＆＃39;＆＃39; e＆＃39 ;：＆＃39;纳斯达克＆＃39;，＆＃39; id＆＃39;：＆＃39; 22144＆＃39;}

但是，只要我尝试使用scrapy crawl dataspider -o out.json将项目保存在文件中，我就会收到此错误：

AttributeError：＆＃39; FeedExporter＆＃39;对象没有属性＆＃39; slot＆＃39;

回溯是：

2017-01-30 01:10:57 [scrapy.utils.signal] ERROR: Error caught on signal handler: <bound method FeedExporter.close_spider of <scrapy.extensions.feedexport.FeedExporter object at 0x7f31e2d8ab00>>
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/twisted/internet/defer.py", line 150, in maybeDeferred
    result = f(*args, **kw)
  File "/usr/lib/python3.6/site-packages/pydispatch/robustapply.py", line 55, in robustApply
    return receiver(*arguments, **named)
  File "/usr/lib/python3.6/site-packages/scrapy/extensions/feedexport.py", line 198, in close_spider
    slot = self.slot
AttributeError: 'FeedExporter' object has no attribute 'slot'

在回溯的早期，我也有这个：

Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/twisted/internet/defer.py", line 150, in maybeDeferred
    result = f(*args, **kw)
  File "/usr/lib/python3.6/site-packages/pydispatch/robustapply.py", line 55, in robustApply
    return receiver(*arguments, **named)
  File "/usr/lib/python3.6/site-packages/scrapy/extensions/feedexport.py", line 187, in open_spider
    uri = self.urifmt % self._get_uri_params(spider)
  File "/usr/lib/python3.6/site-packages/scrapy/extensions/feedexport.py", line 262, in _get_uri_params
    params[k] = getattr(spider, k)
  File "/usr/lib/python3.6/site-packages/scrapy/spiders/__init__.py", line 36, in logger
    logger = logging.getLogger(self.name)
  File "/usr/lib/python3.6/logging/__init__.py", line 1813, in getLogger
    return Logger.manager.getLogger(name)
  File "/usr/lib/python3.6/logging/__init__.py", line 1167, in getLogger
    raise TypeError('A logger name must be a string')
TypeError: A logger name must be a string

知道问题是什么吗？

Answer 1

我尝试使用管理员权限运行命令，问题已解决。

AttributeError：＆＃39; FeedExporter＆＃39;对象没有属性＆＃39; slot＆＃39;

1 个答案: