Reverting my previous commit.

Something went horribly wrong when I was doing `hg rebase`.
diff --git a/Doc/tutorial/stdlib.rst b/Doc/tutorial/stdlib.rst
index 405d799..598859d 100644
--- a/Doc/tutorial/stdlib.rst
+++ b/Doc/tutorial/stdlib.rst
@@ -15,7 +15,7 @@
 
    >>> import os
    >>> os.getcwd()      # Return the current working directory
-   'C:\\Python36'
+   'C:\\Python35'
    >>> os.chdir('/server/accesslogs')   # Change current working directory
    >>> os.system('mkdir today')   # Run the command mkdir in the system shell
    0