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August 9, 2015 01:40
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scraping with python
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#!/usr/bin/env python | |
import re, urlparse | |
from selenium import webdriver | |
from time import sleep | |
import unittest | |
#Articles | |
#http://toddhayton.com/2015/02/03/scraping-with-python-selenium-and-phantomjs/ | |
#https://realpython.com/blog/python/headless-selenium-testing-with-python-and-phantomjs/ | |
#Docs | |
#http://seleniumhq.github.io/selenium/docs/api/py/webdriver_remote/selenium.webdriver.remote.webelement.html#module-selenium.webdriver.remote.webelement | |
#https://docs.python.org/2/library/re.html?highlight=reg%20exp#re.MatchObject.groupdict | |
r = re.compile(r'jobdetail\.ftl\?job=(?P<job_id>\d+)') | |
class Test(unittest.TestCase): | |
def testRegex(self): | |
urls = ['/careersection/l3_ext_us/jobdetail.ftl?job=071197', '/careersection/l3_ext_us/071197'] | |
results = [] | |
for url in urls: | |
m = r.search(url) | |
if (m != None): | |
gd = m.groupdict() | |
results.append(gd['job_id']) | |
else: | |
results.append('') | |
self.assertEqual(results[0], '071197') | |
self.assertEqual(results[1], '') | |
class Scraper(object): | |
def __init__(self): | |
self.driver = webdriver.Firefox() | |
self.jobs = [] | |
self.link = 'https://l3com.taleo.net/careersection/l3_ext_us/jobsearch.ftl' | |
self.maxpage = 5 | |
self.delay = 2 | |
def addJob(self, info): | |
m = r.search(info['url']) | |
if (m != None): | |
gd = m.groupdict() | |
job = {} | |
job['title'] = info['title'] | |
job['id'] = gd['job_id'] | |
job['url'] = m.string | |
self.jobs.append(job) | |
def extractInfo(self, tag): | |
info = {'url': '', 'title': ''} | |
try: | |
info['url'] = tag.get_attribute('href').encode('utf-8') | |
info['title'] = tag.get_attribute('title').encode('utf-8').strip() | |
finally: | |
return info | |
def getJobs(self, tags): | |
for tag in tags: | |
info = self.extractInfo(tag) | |
if (info['url']!='') and (info['title']!=''): | |
self.addJob(info) | |
def scrape(self): | |
self.driver.get(self.link) | |
pagenumb = 1 | |
sleep(self.delay) | |
while True: | |
print('reading page# '+str(pagenumb)) | |
self.getJobs(self.driver.find_elements_by_tag_name('a')) | |
next_page_elem = self.driver.find_element_by_id('next') | |
next_page_class = next_page_elem.get_attribute('class') | |
print(next_page_class) #class on last page: 'navigation-link-disabled' | |
if (next_page_class == '') and ((pagenumb < self.maxpage) or (self.maxpage == 0)): | |
next_page_elem.click() | |
pagenumb += 1 | |
sleep(self.delay) | |
else: | |
break | |
print(self.jobs) | |
self.driver.quit() | |
if __name__ == '__main__': | |
scraper = Scraper() | |
scraper.scrape() |
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