September 2017 Update

Task/Parse-an-IP-Address/Python/parse-an-ip-address-1.py

@@ -0,0 +1,27 @@
+from ipaddress import ip_address
+from urllib.parse import urlparse
+
+tests = [
+    "127.0.0.1",
+    "127.0.0.1:80",
+    "::1",
+    "[::1]:80",
+    "::192.168.0.1",
+    "2605:2700:0:3::4713:93e3",
+    "[2605:2700:0:3::4713:93e3]:80" ]
+
+def parse_ip_port(netloc):
+    try:
+        ip = ip_address(netloc)
+        port = None
+    except ValueError:
+        parsed = urlparse('//{}'.format(netloc))
+        ip = ip_address(parsed.hostname)
+        port = parsed.port
+    return ip, port
+
+for address in tests:
+    ip, port = parse_ip_port(address)
+    hex_ip = {4:'{:08X}', 6:'{:032X}'}[ip.version].format(int(ip))
+    print("{:39s}  {:>32s}  IPv{}  port={}".format(
+        str(ip), hex_ip, ip.version, port ))