image_parser.py

"""
This code will require to install BeatifulSoup4 and Requests library, for that
use:
pip install BeatifulSoup requests
"""
import sys
import time
import shutil
import urllib2
import requests
from urlparse import urljoin

import bs4 as bs


def make_soup(url):
    source = requests.get(url, headers={'User-Agent': "Magic Browser"})
    return bs.BeautifulSoup(source.content, 'html.parser')


def get_images(url):
    soup = make_soup(url)
    images = [img for img in soup.findAll('img')]
    print(str(len(images)), "images found.")
    print('Downloading the images')
    image_links = [each.get('src') for each in images]
    for each in image_links:
        try:
            filename = each.strip().split('/')[-1].strip()
            src = urljoin(url, each)
            print('Getting:', filename)
            response = requests.get(src, stream=True)
            # delay to avoid corrupted previews
            time.sleep(1)
            with open(filename, 'wb') as out_file:
                shutil.copyfileobj(response.raw, out_file)

        except:
            print('An error has been detected... Don\'t worry')

    print 'Done.'

if __name__ == '__main__':
    url = sys.argv[1]
    get_images(url)

pip install BeatifulSoup ( de esa forma esta mal escrito)

Correctamente es: pip install beautifulsoup4