Add assets for the Automated Amazon Price Tracking article

examples/automated_price_tracking/utils.py

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+from urllib.parse import urlparse
+import re
+
+
+def is_valid_url(url: str) -> bool:
+    try:
+        # Parse the URL
+        result = urlparse(url)
+
+        # Check if scheme and netloc are present
+        if not all([result.scheme, result.netloc]):
+            return False
+
+        # Check if scheme is http or https
+        if result.scheme not in ["http", "https"]:
+            return False
+
+        # Basic regex pattern for domain validation
+        domain_pattern = (
+            r"^[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(\.[a-zA-Z]{2,})+$"
+        )
+        if not re.match(domain_pattern, result.netloc):
+            return False
+
+        return True
+
+    except Exception:
+        return False