From cb9a93790fb18dca5343e0a1bf04ef4c394cdbbb Mon Sep 17 00:00:00 2001
From: Prodesire <prodesire@yeah.net>
Date: Thu, 14 Dec 2017 20:19:46 +0800
Subject: [PATCH] add note for is_ipv6 in network doc

---
 docs/network.rst | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/docs/network.rst b/docs/network.rst
index 5fa2740..fda3592 100644
--- a/docs/network.rst
+++ b/docs/network.rst
@@ -34,6 +34,8 @@ Network
     >>> is_ipv4('localhost.localdomain')
     False
 
+    .. note:: ``is_ipv6`` can only be used on ``unix-like`` system.
+
 
 .. py:function:: pydu.network.get_free_port()