为什么scrapyd会抛出:“'FeedExporter'对象没有属性'slot'"?例外? [英] Why does scrapyd throw: "'FeedExporter' object has no attribute 'slot'" exception?

问题描述

我遇到了这样一种情况，当我从命令行使用时，我的scrapy 代码工作正常，但是当我在部署(scrapy-deploy)和使用scrapyd api 调度后使用相同的蜘蛛时，它会在scrapy.extensions.extensions"中引发错误.feedexport.FeedExporter"类.

I came across a situation where my scrapy code is working fine when used from command line but when I'm using the same spider after deploying (scrapy-deploy) and scheduling with scrapyd api it throws error in "scrapy.extensions.feedexport.FeedExporter" class.

1. 一个是在初始化open_spider"信号时
2. 第二个是在初始化item_scraped"信号和
3. 最后一次close_spider"信号

1.open_spider"信号错误

1."open_spider" signal error

2016-05-14 12:09:38 [scrapy] INFO: Spider opened
2016-05-14 12:09:38 [scrapy] ERROR: Error caught on signal handler: <bound method ?.open_spider of <scrapy.extensions.feedexport.FeedExporter object at 0x7fafb1ce4a90>>
Traceback (most recent call last):
  File "/home/jonsnow/venv/scrapy1/lib/python2.7/site-packages/twisted/internet/defer.py", line 150, in maybeDeferred
    result = f(*args, **kw)
  File "/home/jonsnow/venv/scrapy1/lib/python2.7/site-packages/pydispatch/robustapply.py", line 55, in robustApply
    return receiver(*arguments, **named)
  File "/home/jonsnow/venv/scrapy1/lib/python2.7/site-packages/scrapy/extensions/feedexport.py", line 185, in open_spider
    uri = self.urifmt % self._get_uri_params(spider)
TypeError: float argument required, not dict

2.item_scraped"信号错误:

2."item_scraped" signal error:

2016-05-14 12:09:49 [scrapy] DEBUG: Scraped from <200 https://someurl.>
2016-05-14 12:09:49 [scrapy] ERROR: Error caught on signal handler: <bound method ?.item_scraped of <scrapy.extensions.feedexport.FeedExporter object at 0x7fafb1ce4a90>>
Traceback (most recent call last):
  File "/home/jonsnow/venv/scrapy1/lib/python2.7/site-packages/twisted/internet/defer.py", line 150, in maybeDeferred
    result = f(*args, **kw)
  File "/home/jonsnow/venv/scrapy1/lib/python2.7/site-packages/pydispatch/robustapply.py", line 55, in robustApply
    return receiver(*arguments, **named)
  File "/home/jonsnow/venv/scrapy1/lib/python2.7/site-packages/scrapy/extensions/feedexport.py", line 210, in item_scraped
    slot = self.slot
AttributeError: 'FeedExporter' object has no attribute 'slot'

3.close_spider"信号错误:

3."close_spider" signal error:

2016-05-14 12:09:49 [scrapy] INFO: Closing spider (finished)
2016-05-14 12:09:49 [scrapy] ERROR: Error caught on signal handler: <bound method ?.close_spider of <scrapy.extensions.feedexport.FeedExporter object at 0x7fafb1ce4a90>>
Traceback (most recent call last):
  File "/home/jonsnow/venv/scrapy1/lib/python2.7/site-packages/twisted/internet/defer.py", line 150, in maybeDeferred
    result = f(*args, **kw)
  File "/home/jonsnow/venv/scrapy1/lib/python2.7/site-packages/pydispatch/robustapply.py", line 55, in robustApply
    return receiver(*arguments, **named)
  File "/home/jonsnow/venv/scrapy1/lib/python2.7/site-packages/scrapy/extensions/feedexport.py", line 193, in close_spider
    slot = self.slot
AttributeError: 'FeedExporter' object has no attribute 'slot'

<小时>

• Scrapy:1.1.0 版
• scrapyd:1.1.0 版

也试过scrapyd (1.1.0 with scrapy version 0.24.6)

also tried with scrapyd (1.1.0 with scrapy version 0.24.6)

推荐答案

它发生在 feedexporter 无法写入文件时，当我在 excel 中打开我以前导出的 csv 文件时发生了它.尝试关闭打开的导出文件它会正常工作

It happens when feedexporter is not able to write file, it happend to me when i had my previously exported csv file open in excel. try to close the opened exported file it will work fine

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