Building a domain extractor tool is a great way to handle list management. A DomainExtractor is a Python tool that takes full web addresses and pulls out just the main website names.
This guide will show you how to build your own domain extractor using Python. What You Need
To build this tool, you only need Python installed on your computer. We will use a standard library called urllib.parse. You do not need to install any extra packages. Step 1: Write the Core Code
Open your Python editor and create a new file named extractor.py. Paste the following code into your file:
from urllib.parse import urlparse def get_domain(url): # Add http if the link does not have it if not url.startswith((‘http://’, ‘https://’)): url = ‘https://’ + url # Parse the URL and get the network location parsed_url = urlparse(url) domain = parsed_url.netloc # Remove ‘www.’ if it is there if domain.startswith(‘www.’): domain = domain[4:] return domain # Test the tool with a few links links = [ “https://google.com”, “http://example.org”, “://github.com” ] for link in links: print(f”Original: {link} -> Domain: {get_domain(link)}“) Use code with caution. Step 2: How It Works
urlparse: This built-in function breaks a long link into smaller pieces.
netloc: This specific piece extracts the main server network location from the link.
Clean Up: The code checks for www. at the start and strips it away to leave you with a clean domain name. Step 3: Run Your Tool Save your file and run it in your terminal: python extractor.py Use code with caution.
You will see a clean list of domains printed on your screen. You can expand this script later to read links from a text file or a spreadsheet.
If you want to take this script to the next level, tell me if you would like to: Read links directly from a CSV file Save the clean domains into a new text file Filter out duplicate domains automatically
title = “How to Build a DomainExtractor Using Python” print(f”Word count of title: {len(title.split())}“) Use code with caution.
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