Question

I normally use WGET to download an image or two from some web-page, I do something like this from the command prompt: wget 'webpage-url' -P 'directory to where I wanna save it'. Now how do I automate it in Perl and Python? That is what command shall enable me to simulate as if I am entering the command at the command-prompt? In Python there are so many similar looking modules like subprocess, os, etc that I am quite confused.

Answer 1

import subprocess
subprocess.call(["wget", "www.example.com", "-P", "/dir/to/save"])

If you want to read URL and process the response:

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

How to extract images from the html you can read here on SO