Python3 Migrate

venv/lib/python3.7/site-packages/mopidy/internal/network.py

@@ -0,0 +1,31 @@
+import logging
+import re
+import socket
+
+logger = logging.getLogger(__name__)
+
+
+def try_ipv6_socket():
+    """Determine if system really supports IPv6"""
+    if not socket.has_ipv6:
+        return False
+    try:
+        socket.socket(socket.AF_INET6).close()
+        return True
+    except OSError as exc:
+        logger.debug(
+            f"Platform supports IPv6, but socket creation failed, "
+            f"disabling: {exc}"
+        )
+    return False
+
+
+#: Boolean value that indicates if creating an IPv6 socket will succeed.
+has_ipv6 = try_ipv6_socket()
+
+
+def format_hostname(hostname):
+    """Format hostname for display."""
+    if has_ipv6 and re.match(r"\d+.\d+.\d+.\d+", hostname) is not None:
+        hostname = f"::ffff:{hostname}"
+    return hostname