1-scraper.py

import requests
from lxml import html
     
res = requests.get('http://www.example.com')
doc = html.fromstring(res.text)
el = doc.cssselect('#id.class')

2-scraper.rb

require "open-uri"
require "nokogiri" # 3rd party html parsing lib

html = open("http://www.example.com")
doc = Nokogiri::HTML(html)
el = doc.at("#id.class")

3-scraper.clj

(ns crawler.core
  (:require [net.cgrand.enlive-html :as enlive])
  (:import [java.net.URL]))

(def nodes
  (enlive/html-resource 
    (java.net.URL. "http://www.example.com")))

(def el
  (enlive/select nodes 
                 [:#id.class]))