diff --git a/runtime/doc/if_pyth.txt b/runtime/doc/if_pyth.txt
index d9ae025..3b81b0c 100644
--- a/runtime/doc/if_pyth.txt
+++ b/runtime/doc/if_pyth.txt
@@ -1,4 +1,4 @@
-*if_pyth.txt*   For Vim version 7.4.  Last change: 2015 Nov 10
+*if_pyth.txt*   For Vim version 7.4.  Last change: 2016 Sep 01
 
 
 		  VIM REFERENCE MANUAL    by Paul Moore
@@ -56,7 +56,11 @@
 			print 'EAT ME'
 	EOF
 	endfunction
-<
+
+To see what version of Python you have: >
+	:python import sys
+	:python print(sys.version)
+
 Note: Python is very sensitive to the indenting.  Make sure the "class" line
 and "EOF" do not have any indent.
 
@@ -745,6 +749,10 @@
 if the `:py3` command is working: >
 	:py3 print("Hello")
 <							*:py3file*
+To see what version of Python you have: >
+	:py3 import sys
+	:py3 print(sys.version)
+
 The `:py3file` command works similar to `:pyfile`.
 							*:py3do*
 The `:py3do` command works similar to `:pydo`.