How to Download All Images from a Web Page in Python?

Prerequisite:

• Requests 
• BeautifulSoup
• os
• File Handling

Web scraping is a technique to fetch data from websites. While surfing on the web, many websites don’t allow the user to save data for personal use. One way is to manually copy-paste the data, which both tedious and time-consuming. Web Scraping is the automation of the data extraction process from websites. In this article we will discuss how we can download all images from a web page using python.

Modules Needed

• bs4: Beautiful Soup(bs4) is a Python library for pulling data out of HTML and XML files. This module does not come built-in with Python.
• requests:  Requests allows you to send HTTP/1.1 requests extremely easily. This module also does not come built-in with Python.
• os: The OS module in python provides functions for interacting with the operating system. OS, comes under Python’s standard utility modules. This module provides a portable way of using operating system dependent functionality.

Approach

• Import module
• Get HTML Code
• Get list of img tags from HTML Code using findAll method in Beautiful Soup.

images = soup.findAll('img')

Create separate folder for downloading images using mkdir method in os.

os.mkdir(folder_name)

• Iterate through all images and get the source URL of that image.
• After getting the source URL, last step is download the image
• Fetch Content of Image

r = requests.get(Source URL).content

• Download image using File Handling

# Enter File Name with Extension like jpg, png etc..
with open("File Name","wb+") as f:
      f.write(r)

Program:

Python3

from bs4 import *
import requests
import os

# CREATE FOLDER
def folder_create(images):
    try:
        folder_name = input("Enter Folder Name:- ")
        # folder creation
        os.mkdir(folder_name)

    # if folder exists with that name, ask another name
    except:
        print("Folder Exist with that name!")
        folder_create()

    # image downloading start
    download_images(images, folder_name)


# DOWNLOAD ALL IMAGES FROM THAT URL
def download_images(images, folder_name):

    # initial count is zero
    count = 0

    # print total images found in URL
    print(f"Total {len(images)} Image Found!")

    # checking if images is not zero
    if len(images) != 0:
        for i, image in enumerate(images):
            # From image tag ,Fetch image Source URL

                        # 1.data-srcset
                        # 2.data-src
                        # 3.data-fallback-src
                        # 4.src

            # Here we will use exception handling

            # first we will search for "data-srcset" in img tag
            try:
                # In image tag ,searching for "data-srcset"
                image_link = image["data-srcset"]

            # then we will search for "data-src" in img
            # tag and so on..
            except:
                try:
                    # In image tag ,searching for "data-src"
                    image_link = image["data-src"]
                except:
                    try:
                        # In image tag ,searching for "data-fallback-src"
                        image_link = image["data-fallback-src"]
                    except:
                        try:
                            # In image tag ,searching for "src"
                            image_link = image["src"]

                        # if no Source URL found
                        except:
                            pass

            # After getting Image Source URL
            # We will try to get the content of image
            try:
                r = requests.get(image_link).content
                try:

                    # possibility of decode
                    r = str(r, 'utf-8')

                except UnicodeDecodeError:

                    # After checking above condition, Image Download start
                    with open(f"{folder_name}/images{i+1}.jpg", "wb+") as f:
                        f.write(r)

                    # counting number of image downloaded
                    count += 1
            except:
                pass

        # There might be possible, that all
        # images not download
        # if all images download
        if count == len(images):
            print("All Images Downloaded!")

        # if all images not download
        else:
            print(f"Total {count} Images Downloaded Out of {len(images)}")

# MAIN FUNCTION START
def main(url):

    # content of URL
    r = requests.get(url)

    # Parse HTML Code
    soup = BeautifulSoup(r.text, 'html.parser')

    # find all images in URL
    images = soup.findAll('img')

    # Call folder create function
    folder_create(images)


# take url
url = input("Enter URL:- ")

# CALL MAIN FUNCTION
main(url)

Output: