[Twisted-Python] [RFC] Deprecation Policy

Tristan Seligmann mithrandi at mithrandi.net
Fri Apr 18 09:26:16 EDT 2008

* David Ripton <dripton at ripton.net> [2008-04-18 06:13:13 -0700]:

> On 2008.04.18 15:06:10 +1000, Jonathan Lange wrote:
> > CompatibilityPolicy suggests release-based deprecation that is graded
> > over 4 releases: release N PendingDeprecationWarning, N+1
> > DeprecationWarning, N+2 DeprecationError, N+3 remove the
> > functionality.
> > 
> > Ticket #1216 suggests a release-based deprecation policy that is not
> > graded and over 1 release: release N, add DeprecationWarning, release
> > N+1, remove the functionality.
> As a user, I don't see much difference between a
> PendingDeprecationWarning and a DeprecationWarning.  Or between a
> DeprecationError and the code being removed.  Simple is good.

A PendingDeprecationWarning is not visible by default, so users of an
application won't be inundated with DeprecationWarning messages they can
do nothing about; but a developer can turn them on in order to check if
his application is using any deprecated APIs.
mithrandi, i Ainil en-Balandor, a faer Ambar
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