[Python-Dev] breakpoint() and $PYTHONBREAKPOINT

[Barry Warsaw]

On Sep 10, 2017, at 13:46, Nathaniel Smith <njs at pobox.com> wrote:
> 
> On Sun, Sep 10, 2017 at 12:06 PM, Barry Warsaw <barry at python.org> wrote:
>> For PEP 553, I think it’s a good idea to support the environment variable $PYTHONBREAKPOINT[*] but I’m stuck on a design question, so I’d like to get some feedback.
>> 
>> Should $PYTHONBREAKPOINT be consulted in breakpoint() or in sys.breakpointhook()?
> 
> Wouldn't the usual pattern be to check $PYTHONBREAKPOINT once at
> startup, and if it's set use it to initialize sys.breakpointhook()?
> Compare to, say, $PYTHONPATH.

Perhaps, but what would be the visible effects of that?  I.e. what would that buy you?

Cheers,
-Barry

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