[Python-ideas] Show deprecation warnings in the interactive interpreter

[Chris Angelico]

On Wed, Feb 25, 2015 at 9:21 PM, Paul Moore <p.f.moore at gmail.com> wrote:
> On 25 February 2015 at 10:17, Chris Angelico <rosuav at gmail.com> wrote:
>> Agreed; the difference does need justification. Here's justification:
>> Interactive execution places code and output right next to each other.
>> The warning would be emitted right at the time when the corresponding
>> code is entered.
>
> On the other hand, what if "import <3rd party module>" flags a
> deprecation warning because of something the module author does?
> Certainly I can just ignore it (as it's "only" a warning) but it would
> get annoying pretty fast if I couldn't suppress it...

That might be a good excuse to lean on the module's author or submit a
patch. :) But yes, that does present a problem, especially since
warnings will, by default, show only once (if I'm understanding the
docs correctly) - you ignore it in the import, and it's suppressed for
the rest of the session.

ChrisA