Python URL Parsing and Modification for Requests

Python urllib3 : Exercise-25 with Solution

Write a Python program that manually parses a URL, modifies its components, and then reconstruct the URL for a request.

Sample Solution:

Python Code :

import urllib3
from urllib.parse import urlparse, urlunparse

# Original URL
original_url = 'https://www.example.com/path/to/resource?param1=value1¶m2=value2'

# Parse the original URL
parsed_url = urlparse(original_url)

# Modify URL components if needed
parsed_url = parsed_url._replace(path='/new/path', query='new_param=new_value')

# Reconstruct the modified URL
modified_url = urlunparse(parsed_url)

# Create a PoolManager and make a request with the modified URL
http = urllib3.PoolManager()

try:
    # Make a GET request with the modified URL
    response = http.request('GET', modified_url)
    
    # Check if the request was successful (status code 200)
    if response.status == 200:
        print("Request Successful!")
        print("Response:")
        print(response.data.decode('utf-8'))
    else:
        print(f"Error: Unable to fetch data. Status Code: {response.status}")

except Exception as e:
    print(f"Error: {e}")

Sample Output:

Error: Unable to fetch data. Status Code: 404

Explanation:

Here's a brief explanation of the above Python urllib3 library code:

• Start with an original URL (original_url).
• Parse the original URL using "urlparse()" to get its components.
• Modify the URL components as needed.
• After modifying the components, we reconstruct the URL using "urlunparse()".
• Finally, create a "PoolManager" object, make a GET request with the modified URL, and handle the response.

Flowchart:

Python Code Editor :

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Python Event Hooks for Request and Response Customization.
Next: Python HTTP Request with Manual response decompression.