[Python-ideas] Displaying DeprecationWarnings in the interactive interpreter, second try

[Jonathan Slenders]

+1 on this too.

I'm author of the "ptpython" REPL.

Nathaniel Smith: could you tell me what I should do?

Is it enough when I make sure that all code runs in __main__ and running
this command at the start?
warnings.filterwarnings("default", category=DeprecationWarning,
module="__main__")

Jonathan




2015-05-28 10:26 GMT+02:00 M.-A. Lemburg <mal at egenix.com>:

> On 28.05.2015 02:29, Nathaniel Smith wrote:
> > Hi all,
> >
> > I'm tired of getting bug reports like this one:
> >
> >   https://github.com/numpy/numpy/issues/5919
>
> Well, in that particular case, I think numpy should raise a TypeError
> instead of a DeprecationWarning :-)
>
> > where the issue is just that the user didn't see deprecation warnings,
> > so I just filed a bug report requesting that the interactive Python
> > REPL start printing DeprecationWarnings when users use deprecated
> > functionality:
> >
> >   https://bugs.python.org/issue24294
>
> +1 on the general idea, but I think this needs some more thought
> on the topic of how you detect an interactive session that's being
> used by a user.
>
> You wouldn't want these warning to show up when piping in commands
> to a Python interpreter.
>
> In eGenix PyRun we use sys.stdin.isatty() to check whether we
> want an interactive prompt or not. I guess the same could be done
> here.
>
> --
> Marc-Andre Lemburg
> eGenix.com
>
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