Download all the files in the website

You can download file like this

import urllib2
response = urllib2.urlopen('http://www.example.com/file_to_download')
html = response.read()

To get all the links in a page

from bs4 import BeautifulSoup

import requests
r  = requests.get("http://site-to.crawl")
data = r.text
soup = BeautifulSoup(data)

for link in soup.find_all('a'):
    print(link.get('href'))