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Wed Mar 4 05:09:18 CET 2009 · https://mail.python.org/pipermail/python-dev/2009-March/086690.html

2009/3/3 Brett Cannon <brett at python.org>:
>
>
> On Tue, Mar 3, 2009 at 17:30, Eric Smith <eric at trueblade.com> wrote:
>>>
>>> We need a really long lead time before we can remove these. I
>>> recommend starting with a *silent* deprecation in 3.1 combined with a
>>> PR offensive for the new names.
>>
>> I think the old names basically have to live forever in some way, due to
>> loading old pickles. Remember the problems we had when we tried to
>> restructure the library in 2.6?
>>
>
> Forever is a long time. =) If we keep the PendingDeprecationWarning for a
> long time and really get the word out of the renames then people can migrate
> their pickles over time. The real problem with the 2.6 reorg was that people
> didn't want to have zero lead time to update their pickles and they way the
> transition was being handled. In this case the old names and simply subclass
> the new names and have no issues with old code.

Yes, I'm already looking forward to Py4k now. :)

-- 
Regards,
Benjamin

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Showing content from https://mail.python.org/pipermail/python-dev/2009-March/086690.html below:

[Python-Dev] Adding PEP consistent aliases for names that don't currently conform