With Python 2

1. First, import the required module, urllib:

>>> import urllib  

1. With the urlopen method, you can download the web page:

>>> webpage = urllib.urlopen("https://www.packtpub.com/")  

1. We can read the file like a returned object with the read method:

>>> source =  webpage.read()  

1. Close the object when it's done:

>>>  webpage.close()  

1. Now we can print the HTML, which is in a string format:

>>> print source  

1. It is very easy to update the program to write the contents of the source string to a local file on your computer:

>>> f = open('packtpub-home.html', 'w')
      >>> f.write(source)
      >>> f.close