[Python] Parse the html code for a whole webpage scrolled down

from bs4 import BeautifulSoup
import urllib,sys
reload(sys)
sys.setdefaultencoding("utf-8")
r = urllib.urlopen('https://twitter.com/ndtv').read()
soup = BeautifulSoup(r)


This would give me not the whole web page scrolled down the end which I want but only some of it.

EDIT:

from selenium import webdriver
from selenium.common.exceptions import StaleElementReferenceException, TimeoutException
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from bs4 import BeautifulSoup
import urllib,sys,requests
reload(sys)
sys.setdefaultencoding("utf-8")

class wait_for_more_than_n_elements_to_be_present(object):
def __init__(self, locator, count):
self.locator = locator
self.count = count

def __call__(self, driver):
try:
elements = EC._find_elements(driver, self.locator)
return len(elements) > self.count
except StaleElementReferenceException:
return False

def return_html_code(url):
driver = webdriver.Firefox()
driver.maximize_window()
driver.get(url)
# initial wait for the tweets to load
wait = WebDriverWait(driver, 10)
wait.until(EC.visibility_of_element_located((By.CSS_SELECTOR, "li[data-item-id]")))
# scroll down to the last tweet until there is no more tweets loaded
while True:
tweets = driver.find_elements_by_css_selector("li[data-item-id]")
number_of_tweets = len(tweets)
print number_of_tweets
driver.execute_script("arguments[0].scrollIntoView();", tweets[-1])
try:
wait.until(wait_for_more_than_n_elements_to_be_present((By.CSS_SELECTOR, "li[data-item-id]"), number_of_tweets))
except TimeoutException:
break
html_full_source=driver.page_source
driver.close()
return html_full_source


url='https://twitter.com/thecoolstacks'
#using selenium browser
html_source=return_html_code(url)
soup_selenium = BeautifulSoup(html_source)
print soup_selenium
text_tweet=[]
alltweets_selenium = soup_selenium.find_all(attrs={'data-item-type' : 'tweet'})
for tweet in alltweets_selenium:
#Text of tweet
html_tweet= tweet.find_all("p", class_="TweetTextSize TweetTextSize--16px js-tweet-text tweet-text")
text_tweet.append(''.join(html_tweet[0].findAll(text=True)))
print text_tweet


Intended Output:

import requests from bs4 import BeautifulSoup url='https://twitter.com/thecoolstacks'
req = requests.get(url)
soup = BeautifulSoup(req.content)
alltweets = soup.find_all(attrs={'data-item-type' : 'tweet'})
print alltweets[0]

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