Tried Python BeautifulSoup and Phantom JS: STILL cannot clean websites

Question

You may have seen my desperate disappointments over the past few weeks here. I cleared some data about the timeout and still cannot capture data from these two sites.

http://www.centura.org/erwait

http://hcavirginia.com/home/

First I tried BS4 for Python. Sample Code for HCA Virgina

from BeautifulSoup import BeautifulSoup
import requests

url = 'http://hcavirginia.com/home/'
r = requests.get(url)

soup = BeautifulSoup(r.text)
wait_times = [span.text for span in soup.findAll('span', attrs={'class': 'ehc-er-digits'})]

fd = open('HCA_Virginia.csv', 'a')

for w in wait_times:
    fd.write(w + '\n')

fd.close()

All of this means that these are printed spaces on the console or in the CSV. So I tried it with PhantomJS, as someone told me that it could be loading from JS. However, the same result! Prints spaces for the console or CSV. Sample code below.

var page = require('webpage').create(),
url = 'http://hcavirginia.com/home/';

page.open(url, function(status) {
if (status !== "success") {
    console.log("Can't access network");
} else {
    var result = page.evaluate(function() {

        var list = document.querySelectorAll('span.ehc-er-digits'), time = [], i;
        for (i = 0; i < list.length; i++) {
            time.push(list[i].innerText);
        }
        return time;

    });
    console.log (result.join('\n'));
    var fs = require('fs');
    try 
    {                   
        fs.write("HCA_Virginia.csv", '\n' + result.join('\n'), 'a');
    } 
    catch(e) 
    {
        console.log(e); 
    } 
}

phantom.exit();
});

Same problems with Centura Health :(

What am I doing wrong?

Answer 1

, , , JS, . , JS , .

PyQt4. webscraping.com HTML, BeautifulSoup, :

( webscraping python. , )

import sys
from bs4 import BeautifulSoup
from PyQt4.QtGui import *
from PyQt4.QtCore import *
from PyQt4.QtWebKit import * 

class Render(QWebPage):
    def __init__(self, url):
        self.app = QApplication(sys.argv)
        QWebPage.__init__(self)
        self.loadFinished.connect(self._loadFinished)
        self.mainFrame().load(QUrl(url))
        self.app.exec_()

    def _loadFinished(self, result):
        self.frame = self.mainFrame()
        self.app.quit()   

url = 'http://hcavirginia.com/home/'
r = Render(url)
soup = BeautifulSoup(unicode(r.frame.toHtml()))
# In Python 3.x, don't unicode the output from .toHtml(): 
#soup = BeautifulSoup(r.frame.toHtml()) 
nums = [int(span) for span in soup.find_all('span', class_='ehc-er-digits')]
print nums

:

[21, 23, 47, 11, 10, 8, 68, 56, 19, 15, 7]

---

, ghost.py:

- , ghost.py. ( Python 2.7, ghost.py 0.1b3 PyQt4-4 32-). , !

from ghost import Ghost
from time import sleep

ghost = Ghost(wait_timeout=50, download_images=False)
page, extra_resources = ghost.open('http://hcavirginia.com/home/',
                                   headers={'User-Agent': 'Mozilla/4.0'})

# Halt execution of the script until a span.ehc-er-digits is found in 
# the document
page, resources = ghost.wait_for_selector("span.ehc-er-digits")

# It should be possible to simply evaluate
# "document.getElementsByClassName('ehc-er-digits');" and extract the data from
# the returned dictionary, but I didn't quite understand the
# data structure - hence this inline javascript.
nums, resources = ghost.evaluate(
    """
    elems = document.getElementsByClassName('ehc-er-digits');
    nums = []
    for (i = 0; i < elems.length; ++i) {
        nums[i] = elems[i].innerHTML;
    }
    nums;
    """)

wt_data = [int(x) for x in nums]
print wt_data
sleep(30) # Sleep a while to avoid the crashing of the script. Weird issue!

:

• , dict Ghost.evaluate(document.getElementsByClassName('ehc-er-digits');) - , , , , .

• script . 30 .