Update version number

chinyeungli · chinyeungli · commit 65e507da368e · 2017-08-09T10:59:17.000+08:00
diff --git a/src/attributecode/__init__.py b/src/attributecode/__init__.py
@@ -21,7 +21,7 @@
 from collections import namedtuple
 import logging
 
-__version__ = '3.0.0.dev3'
+__version__ = '3.0.0.dev4'
 
 __about_spec_version__ = '2.0.0.dev2'
 
