parsing - How to parse Web pages that don't return results initially in Python? -


i want load list of images in this page in python. however, when opened page in browser (chrome or safari) , opened dev tools, inspector returned list of images <img class="grid-item--image">....

however, when tried parse in python, result seemed different. specifically, got list of images <img class="carousel--image"...>, whereas soup.findall("img", "grid-item--image") did return empty list. also, tried saving images using srcset tag, of saved images not listed on web.

i think web page used sort of technics when rendering. how can parse web pages successfully?

i used beautifulsoup 4 on python 3.5. loaded page follows:

import requests bs4 import beautifulsoup html = requests.get(url).text soup = beautifulsoup(html, "html.parser", from_encoding="utf-8")  return soup

you better use selenium follows:

from bs4 import beautifulsoup selenium import webdriver  browser = webdriver.firefox() browser.get("http://www.vogue.com/fashion-shows/fall-2016-menswear/fendi#collection") html_source = browser.page_source soup = beautifulsoup(html_source, "html.parser")  item in soup.find_all("img", {"class":"grid-item--image"}):     print(item.get('srcset'))

this display following kind of output:

http://assets.vogue.com/photos/569d37e434324c316bd70f04/master/w_195/_fen0016.jpg http://assets.vogue.com/photos/569d37e5d928983d20a78e4f/master/w_195/_fen0027.jpg http://assets.vogue.com/photos/569d37e834324c316bd70f0a/master/w_195/_fen0041.jpg http://assets.vogue.com/photos/569d37e334324c316bd70efe/master/w_195/_fen0049.jpg http://assets.vogue.com/photos/569d37e702e08d8957a11e32/master/w_195/_fen0059.jpg ... ... ... http://assets.vogue.com/photos/569d3836486d6d3e20ae9625/master/w_195/_fen0616.jpg http://assets.vogue.com/photos/569d381834324c316bd70f3b/master/w_195/_fen0634.jpg http://assets.vogue.com/photos/569d3829fa6d6c9057f91d2a/master/w_195/_fen0649.jpg http://assets.vogue.com/photos/569d382234324c316bd70f41/master/w_195/_fen0663.jpg http://assets.vogue.com/photos/569d382b7dcd2a8a57748d05/master/w_195/_fen0678.jpg http://assets.vogue.com/photos/569d381334324c316bd70f2f/master/w_195/_fen0690.jpg http://assets.vogue.com/photos/569d382dd928983d20a78eb1/master/w_195/_fen0846.jpg

this allows full rendering of page take place inside browser, , resulting html can obtained.


Comments

Post a Comment

Popular posts from this blog

javascript - jQuery: Add class depending on URL in the best way -

i have html progress meter: <div class="col-md-3" style="margin-left: -20px;"> <div class="progress-pos active" id="progess-1"> <div class="progress-pos-inner"> login </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-2"> <div class="progress-pos-inner"> scan items </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-3"> <div class="progress-pos-inner"> confirm address </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-4"> <div class="progress-pos-in
Read more

caching - How to check if a url path exists in the service worker cache -

i need check if particular url path exists in service worker cache. example, suppose url is: /myserviceworker/service?a=110&b=70 this url exists in cache, there many of them different values of , b. now, suppose want refresh of these urls, how can that? i want know how access key values service worker cache. if know key, plan follows: var url = new url(key); if(url.pathname === "\/myserviceworker/service") refetch key but not sure how cache key , in format is. mean, string or url? cache api has match() method returns promise resolving in response object if match or undefined if no match exists. second parameter object can specify ignoresearch not take account url parameters. the ignoresearch option supported firefox ( chrome status here ). in other hand, retrieve cache entries, can use keys() method.
Read more

Redirect to a HTTPS version using .htaccess -

i need modify .htaccess file redirect urls https version without "www". http://example.com --> https://example.com http://www.example.com --> https://example.com https://www.example.com --> https://example.com this how .htaccess file looks like: rewriteengine on rewritecond %{request_filename} !-d rewritecond %{request_filename} !-f rewriterule ^(.*)$ redirect.php?id=$1&page=$2 [qsa,l] what modifications need make .htaccess in order forward https without "www"? it depends on doing current code. looks file called redirect trying display php page seo friendly url. think might confusing people. anyway, need , force https without www, need 1 more rule above. also second rule needs two capture groups in rewriterule test string because wanting 2 different values using $1 , $2 references. rewriteengine on #rediect www non www and/or http https --- combinations. rewritecond %{http_host} !^example\.com [nc,or] rewritecond %{https} !^
Read more