isolate the execution of a script from the user's environment. This is
appropriate, for example, when Python is used to run a system script. On
most POSIX systems it can and should be used in the ``#!`` line of system
- scripts. (Contributed by Christian Heims in :issue:`16499`.)
+ scripts. (Contributed by Christian Heimes in :issue:`16499`.)
* Tab-completion is now enabled by default in the interactive interpreter.
(Contributed by Antoine Pitrou and Éric Araujo in :issue:`5845`.)