MissingSchema: Invalid URL

Why This Happens

The requests library requires URLs to include the scheme. Unlike browsers which infer it, requests needs it explicitly.

The Problem

import requests
response = requests.get('api.example.com/data')

The Fix

import requests
response = requests.get('https://api.example.com/data')

# Add scheme dynamically:
url = 'api.example.com'
if not url.startswith(('http://', 'https://')):
    url = 'https://' + url

Step-by-Step Fix

1. 1

   Add the scheme

   Prefix with 'https://' or 'http://'.

2. 2

   Validate URLs

   Check that URLs always include the scheme.

3. 3

   Use urllib.parse

   Use urlparse() to validate URL components.