fixed "property" Python snippet

snippets/python.snippets

@@ -1,6 +1,13 @@
 snippet #!
 	#!/usr/bin/python
 
+# Module Docstring
+snippet docs
+	'''
+	File: ${1:`Filename('$1.py', 'foo.py')`}
+	Author: ${2:`g:snips_author`}
+	Description: ${3}
+	'''
 snippet wh
 	while ${1:condition}:
 		${2:# code...}
@@ -31,6 +38,7 @@ snippet property
 		def fget(self):
 			${3:return self._$1}
 		def fset(self, value):
+			${4:self._$1 = value}
 
 # Self
 snippet .