shouldn t text () extract the text information inside? I m a little confused ...
scrapy tutorial: http: scrapy-chs.readthedocs. Environment: python3.6 + windows7 Project structure Directory: mySpider:scrapy crawl domz: there is no [dmoz] output as mentioned in the tutorial, is there any new file, is there something I don t...
recently read Learning Scrapy, which mentions a crawler that automatically turns pages and crawls items on each page. The book says that Scrapy uses last-in, first-out queues. suppose there are 30 items on each page, and start_url is set to the first ...
when scrapy saves data through Pipeline (in txt format), some data gbk codec can t encode character appears as follows. class TxtPipeline(object): def process_item(self,item,spider): path=os.getcwd() filename = path + dat...
A nasty piece of html code that writes js in div. It s a keyboard paging code xpath found that the tagged content in is gone, like this I am China person what I get is: I am human. China does not have , and then some people say that my xpath ...
when the crawler starts, it is redirected to an error page. What to do http: www.gzcc.gov.cn data l. crawler s error log is ...
I used paging crawlers with the same structure for three websites. But the result of two of the crawlers is to collect only one piece of data per page, and then start to turn the page until the last page and then go back to collect other data from the pr...
because this is the first time to climb a picture, I don t understand the error of the picture. http: 699pic.com people.html crawled the first page, with a total of 97 pictures, of which I crawled 93. Error in 4 pictures: what does this error me...
http: 222.92.5.35:8082 zwgk.aspx the viewstate click that turns the page of this website will change, and it is different to click on a page again. How to turn the page like this? The form is always different from that in the source code, so I don...
^ C2018-04-27 10:47:58 [scrapy.crawler] INFO: Received SIG_SETMASK, shutting down gracefully. Send again to force ^ C2018-04-27 10:47:58 [scrapy.crawler] INFO: Received SIG_SETMASK twice, forcing unclean shutdown often get stuck and occasionally prom...
the company computer, plus domain, win10 system, when there are many retries in the collection process, part of the data will be collected and will be retried all the time, unable to continue, the reason is unknown. has nothing to do with agent availab...
when collecting, it will always stay on the card for more than 30 minutes, and then prompt "took longer than 180.0 seconds " . seek a general solution ...
There is no page information in the source code of the page. How to get the xpath. http: fwzl.hffd.gov.cn house. on the next page can all be found in the source code, but the information in the following figure is not available, which makes me unable ...
Open two scrapy tasks at the same time, and then go to push in redis a start_url but only one scrapy task An is running, and when An is stopped, B task will begin to crawl. the reason seems to be that requests is not saved in redis while...
scrapy.Request cannot enter callback code is as follows: def isIdentifyingCode(self, response): -sharp pass def get_identifying_code(self, headers): -sharp -sharp return scrapy.Req...
http: house.njhouse.com.cn r. website flip links are displayed as a-sharp, can you still use crawl spider? how to write the rules of this site if it works. I wrote this unworkable amount rules = [ Rule (LinkExtractor (allow= ( rent houselist ...
after crawling the navigation, the URL crawl that you want to continue in-depth navigation, and then the unified return value is written to xlsx < H1 >--coding: utf-8--< H1 > from lagou.items import LagouItem; import scrapy class LaGouSpider (...
the number of pages in the website is only 100 pages. How to collect the data after 101pages ...
execute after entering the project, the error shows scrapy command not found , but I-sharpscrapy can be run, the scrapy crawl test crawler command can also be executed alone, only the scheduled command will appear scrapy:command not found ...
system: Ubuntu 16.4 python3.6 twisted-15.2.1 Scrapy 1.5.0 is also installed in the virtual environment prompt the following message when creating a Scrapy: (pyvirSpider) root@ubuntu: myScrapy-sharp scrapy startproject test Traceback (most recent...
how to change the server today and use the crawl diagnostic tool to discover or crawl the previous server ip? ...
problem description how to achieve the log effect of nodejs the environmental background of the problems and what methods you have tried write the code according to the introduction of the modules in the NPM package and github, how to start it? ...
I do mobile photo clipping and upload pictures, and there will be a problem of automatic rotation of pictures under ios. Now I want to use canvas to deal with the cropped pictures, but canvas drawing pictures have not been displayed. Have you ever encou...
The A table has both id,B and id. But the id of B table is only a part of A table, how to merge the name of B table into A table through id, for example, the id of B table is 10, and the id of A table is 10, then name should be added to the row with id 1...
has anyone ever encountered this problem: A div set the maximum height, such as 700px bar, which contains a height of 1000px , set a scroll bar, and display normally on desktops and notebooks, but when projecting with a notebook, I find that 200px ...