Issue
I would really appreciate help in my code, it should print.
URL is: http://en.wikipedia.org/wiki/Python_%28programming_language%29
Title is: Python (programming language)
import scrapy
class ArticleSpider(scrapy.Spider):
name='article'
def start_requests(self):
urls = [
'http://en.wikipedia.org/wiki/Python_%28programming_language%29']
#, 'https://en.wikipedia.org/wiki/Functional_programming',
# 'https://en.wikipedia.org/wiki/Monty_Python']
return [scrapy.Request(url=url, callback=self.parse)
for url in urls]
def parse(self, response):
url = response.url
title = response.css('h1::text').extract_first()
print('URL is: {}'.format(url))
print('Title is: {}'.format(title))
Here is the output
(venv) C:\PythonProjects\il_health_facilities\wikiSpider\wikiSpider\spiders>scrapy runspider articles.py
2021-02-08 23:09:03 [scrapy.utils.log] INFO: Scrapy 2.4.1 started (bot: wikiSpider)
2021-02-08 23:09:03 [scrapy.utils.log] INFO: Versions: lxml 4.6.2.0, libxml2 2.9.5, cssselect 1.1.0, parsel 1.6.0, w3lib 1.22.0, Twisted 20.3.0, Python 3.9.0 (tags/v3.9.0:9cf6752, Oct 5 2020, 15:34:40) [MSC v.1927 64 bit (AMD64)], pyOpenSSL 20.0.1 (OpenSSL 1.1.1i 8 Dec 2020), cryptography 3.4.2, Platform Windows-10-10.0.19041-SP0
2021-02-08 23:09:03 [scrapy.utils.log] DEBUG: Using reactor: twisted.internet.selectreactor.SelectReactor
2021-02-08 23:09:03 [scrapy.crawler] INFO: Overridden settings:
{'BOT_NAME': 'wikiSpider',
'NEWSPIDER_MODULE': 'wikiSpider.spiders',
'ROBOTSTXT_OBEY': True,
'SPIDER_LOADER_WARN_ONLY': True,
'SPIDER_MODULES': ['wikiSpider.spiders']}
2021-02-08 23:09:03 [scrapy.extensions.telnet] INFO: Telnet Password: 9f145e989cdeb188
2021-02-08 23:09:03 [scrapy.middleware] INFO: Enabled extensions:
['scrapy.extensions.corestats.CoreStats',
'scrapy.extensions.telnet.TelnetConsole',
'scrapy.extensions.logstats.LogStats']
2021-02-08 23:09:03 [scrapy.middleware] INFO: Enabled downloader middlewares:
['scrapy.downloadermiddlewares.robotstxt.RobotsTxtMiddleware',
'scrapy.downloadermiddlewares.httpauth.HttpAuthMiddleware',
'scrapy.downloadermiddlewares.downloadtimeout.DownloadTimeoutMiddleware',
'scrapy.downloadermiddlewares.defaultheaders.DefaultHeadersMiddleware',
'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware',
'scrapy.downloadermiddlewares.retry.RetryMiddleware',
'scrapy.downloadermiddlewares.redirect.MetaRefreshMiddleware',
'scrapy.downloadermiddlewares.httpcompression.HttpCompressionMiddleware',
'scrapy.downloadermiddlewares.redirect.RedirectMiddleware',
'scrapy.downloadermiddlewares.cookies.CookiesMiddleware',
'scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware',
'scrapy.downloadermiddlewares.stats.DownloaderStats']
2021-02-08 23:09:03 [scrapy.middleware] INFO: Enabled spider middlewares:
['scrapy.spidermiddlewares.httperror.HttpErrorMiddleware',
'scrapy.spidermiddlewares.offsite.OffsiteMiddleware',
'scrapy.spidermiddlewares.referer.RefererMiddleware',
'scrapy.spidermiddlewares.urllength.UrlLengthMiddleware',
'scrapy.spidermiddlewares.depth.DepthMiddleware']
2021-02-08 23:09:03 [scrapy.middleware] INFO: Enabled item pipelines:
[]
2021-02-08 23:09:03 [scrapy.core.engine] INFO: Spider opened
2021-02-08 23:09:03 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2021-02-08 23:09:03 [scrapy.extensions.telnet] INFO: Telnet console listening on 127.0.0.1:6023
2021-02-08 23:09:03 [scrapy.core.engine] INFO: Closing spider (finished)
2021-02-08 23:09:03 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{'elapsed_time_seconds': 0.007,
'finish_reason': 'finished',
'finish_time': datetime.datetime(2021, 2, 9, 7, 9, 3, 568775),
'log_count/INFO': 10,
'start_time': datetime.datetime(2021, 2, 9, 7, 9, 3, 561775)}
2021-02-08 23:09:03 [scrapy.core.engine] INFO: Spider closed (finished)
(venv) C:\PythonProjects\il_health_facilities\wikiSpider\wikiSpider\spiders>
For debugging purpose I ran shell "http://en.wikipedia.org/wiki/Python_%28programming_language%29" Following is the output:
2021-02-08 23:13:21 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://en.wikipedia.org/wiki/Python_%28programming_language%29> (referer: None)
[s] Available Scrapy objects:
[s] scrapy scrapy module (contains scrapy.Request, scrapy.Selector, etc)
[s] crawler <scrapy.crawler.Crawler object at 0x000002C898065070>
[s] item {}
[s] request <GET http://en.wikipedia.org/wiki/Python_%28programming_language%29>
[s] response <200 https://en.wikipedia.org/wiki/Python_%28programming_language%29>
[s] settings <scrapy.settings.Settings object at 0x000002C898061970>
[s] spider <DefaultSpider 'default' at 0x2c8983bce50>
[s] Useful shortcuts:
[s] fetch(url[, redirect=True]) Fetch URL and update local objects (by default, redirects are followed)
[s] fetch(req) Fetch a scrapy.Request and update local objects
[s] shelp() Shell help (print this help)
[s] view(response) View response in a browser
>>> response.css('h1::text').extract_first()
'Python (programming language)'
>>> response.url
'https://en.wikipedia.org/wiki/Python_%28programming_language%29'
>>>
Thank you
Solution
Like @joao wrote in the comment your parse method is not defined as a method but as a function outside of ArticleSpider. I put it inside and it works for me. PS. If you're just using the default "parse" name for the method you dont have to specify that that's callback.
Output
2021-02-09 10:29:13 [scrapy.downloadermiddlewares.redirect] DEBUG: Redirecting (301) to <GET https://en.wikipedia.org/wiki/Python_%28programming_language%29> from <GET http://en.wikipedia.org/wiki/Python_%28programming_language%29>
2021-02-09 10:29:13 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://en.wikipedia.org/wiki/Python_%28programming_language%29> (referer: None)
URL is: https://en.wikipedia.org/wiki/Python_%28programming_language%29
Title is: Python (programming language)
2021-02-09 10:29:13 [scrapy.core.engine] INFO: Closing spider (finished)
2021-02-09 10:29:13 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
Code
import scrapy
class ArticleSpider(scrapy.Spider):
name='article'
def start_requests(self):
urls = [
'http://en.wikipedia.org/wiki/Python_%28programming_language%29']
#, 'https://en.wikipedia.org/wiki/Functional_programming',
# 'https://en.wikipedia.org/wiki/Monty_Python']
return [scrapy.Request(url=url)
for url in urls]
def parse(self, response):
url = response.url
title = response.css('h1::text').extract_first()
print('URL is: {}'.format(url))
print('Title is: {}'.format(title))
Answered By - Felix Eklöf
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