【发布时间】:2015-11-15 22:19:57
【问题描述】:
是否有特殊机制强制scrapy打印出所有python异常/stacktrace。
我犯了一个简单的错误,导致列表属性错误,导致 AttributeError 没有完整显示在日志中 出现的是:
2015-11-15 22:13:50 [scrapy] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 264,
'downloader/request_count': 1,
'downloader/request_method_count/GET': 1,
'downloader/response_bytes': 40342,
'downloader/response_count': 1,
'downloader/response_status_count/200': 1,
'finish_reason': 'finished',
'finish_time': datetime.datetime(2015, 11, 15, 22, 13, 50, 860480),
'log_count/CRITICAL': 1,
'log_count/DEBUG': 1,
'log_count/INFO': 1,
'response_received_count': 1,
'scheduler/dequeued': 1,
'scheduler/dequeued/memory': 1,
'scheduler/enqueued': 1,
'scheduler/enqueued/memory': 1,
'spider_exceptions/AttributeError': 1,
'start_time': datetime.datetime(2015, 11, 15, 22, 13, 49, 222371)}
所以它显示 AttributeError 计数为 1,但没有告诉我在哪里以及如何,我不得不手动将 ipdb.set_trace() 放入代码中以找出错误的位置。 Scrapy 自己继续执行其他线程而不打印任何内容
ipdb>
AttributeError: "'list' object has no attribute 'match'"
> /Users/username/Programming/regent/regentscraper/spiders/regent_spider.py(139)request_listing_detail_pages_from_listing_id_list()
138 volatile_props = ListingScanVolatilePropertiesItem()
--> 139 volatile_props['position_in_search'] = list_of_listing_ids.match(listing_id) + rank_of_first_item_in_page
140
scrapy 设置
# -*- coding: utf-8 -*-
# Scrapy settings for regentscraper project
#
# For simplicity, this file contains only settings considered important or
# commonly used. You can find more settings consulting the documentation:
#
# http://doc.scrapy.org/en/latest/topics/settings.html
# http://scrapy.readthedocs.org/en/latest/topics/downloader-middleware.html
# http://scrapy.readthedocs.org/en/latest/topics/spider-middleware.html
import sys
import os
import django
sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__name__), os.pardir)))
print sys.path
os.environ['DJANGO_SETTINGS_MODULE'] = 'regent.settings'
django.setup() #new for Django 1.8
BOT_NAME = 'regentscraper'
SPIDER_MODULES = ['regentscraper.spiders']
NEWSPIDER_MODULE = 'regentscraper.spiders'
ITEM_PIPELINES = {
'regentscraper.pipelines.ListingScanPipeline': 300,
}
【问题讨论】:
-
为问题添加了设置
-
不,没有帮助 - 只是尝试过。谢谢@alecxe
-
我已将其精确定位到设置文件中的以下行(我需要它,因为我使用的是 Django 1.8) - django.setup() #new for Django 1.8 --- 删除此行开始记录追溯 - 不知道为什么
-
请提供您的解决方案作为可以轻松找到并投票赞成的答案。
标签: python web-crawler scrapy