From aad10fc3dc8a54d0b539218f7ac62844d1a1d335 Mon Sep 17 00:00:00 2001
From: Prodesire <prodesire@yeah.net>
Date: Sun, 25 Mar 2018 23:22:05 +0800
Subject: [PATCH] add doc for py.system

---
 docs/system.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/docs/system.rst b/docs/system.rst
index 75aaf62..5e0c679 100644
--- a/docs/system.rst
+++ b/docs/system.rst
@@ -193,3 +193,8 @@ Utils for handling system, like to track file, make directory, link and so on.
     >>>
 
     .. note:: ``chcp`` can only be used on ``Windows`` system.
+
+
+.. py:function:: pydu.system.preferredencoding(code)
+
+    Get best encoding for the system.