From 489142364d625b0cf770c3c6440c4e3a21408b28 Mon Sep 17 00:00:00 2001
From: Prodesire <prodesire@yeah.net>
Date: Fri, 8 Dec 2017 22:16:04 +0800
Subject: [PATCH] add doc for network.get_free_port

---
 docs/network.rst | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/docs/network.rst b/docs/network.rst
index ffb9752..f187ed3 100644
--- a/docs/network.rst
+++ b/docs/network.rst
@@ -22,3 +22,12 @@ Network
     True
     >>> is_ipv4('localhost.localdomain')
     False
+
+
+.. py:function:: pydu.network.get_free_port()
+
+    Get free port which could be bound.
+
+    >>> from pydu.network import get_free_port
+    >>> get_free_port()
+    57118