On 22 February 2013 22:56, Raymond Hettinger <report@bugs.python.org> wrote:

>
> Raymond Hettinger added the comment:
>
> The issue is usually with firewalls, security software, socket issues,
> etc.  While the root problem lies outside IDLE, often the simplest way to
> get someone up and running is to use the -n option.
>
> This is one of many annoyances that arise when teaching students Python
> using IDLE:
> * Preferences window crashing
> * Default font-size on a retina mac is tiny
> * Inability to shutoff the prominent warning messages
> * Control-A goes to the beginning of the line, past the >>> prompt.
> * On Windows, IDLE sometimes has a two second delay before it runs scripts
> * Students find that IDLE mysteriously pastes a clipboard into the
> interactive prompt unintentionally
> * It is a common complaint that IDLE hangs
> * Getting the correct Tcl/Tk setup on Macs is problematic.
> * Starting IDLE from the command line emits messages about "setCanCycle is
> deprecated"
>
> ----------
>
> _______________________________________
> Python tracker <report@bugs.python.org>
> <http://bugs.python.org/issue16123>
> _______________________________________
>

Not experienced any of the problems on Linux.