networking-py: use DNS hostname in urllib_get.py

Signed-off-by: danbugs <danilochiarlone@gmail.com>

Author: danbugs

examples/networking-py/urllib_get.py

@@ -1,20 +1,16 @@
 """High-level HTTP GET using urllib (Python stdlib).
 
 Demonstrates that Python's standard urllib.request module works
-over the host-proxied socket layer — no raw sockets needed.
-
-Uses a raw IP with Host header to avoid DNS dependency (glibc's
-getaddrinfo doesn't yet work over host-proxied UDP sockets).
+over the host-proxied socket layer with full DNS resolution.
 """
 import urllib.request
 import sys
 
-URL = "http://172.66.147.243/"
+URL = "http://example.com/"
 
 print(f"Fetching {URL} ...")
-req = urllib.request.Request(URL, headers={"Host": "example.com"})
 try:
-    with urllib.request.urlopen(req, timeout=10) as resp:
+    with urllib.request.urlopen(URL, timeout=10) as resp:
         body = resp.read().decode("utf-8", errors="replace")
         print(f"Status: {resp.status}")
         print(f"Body length: {len(body)} bytes")