python-peps/pep-0320.txt

PEP: 320
Title: Python 2.4 Release Schedule
Version: $Revision$
Author: Barry Warsaw
Status: Incomplete
Type: Informational
Created: 29-Jul-2003
Python-Version: 2.4
Post-History:

Abstract

    This document describes the development and release schedule for
    Python 2.4.  The schedule primarily concerns itself with PEP-sized
    items.  Small features may be added up to and including the first
    beta release.  Bugs may be fixed until the final release.

    There will be at least two alpha releases, two beta releases, and
    one release candidate.  Other than that, no claims are made on
    release plans, nor what will actually be in Python 2.4 at this
    early date.  There were 19 months between the Python 2.2 final and
    Python 2.3 final releases.  If that schedule holds true for Python
    2.4, you can expect it some time around February 2005.


Release Manager

    TBD


Completed features for 2.4

    None


Planned features for 2.4

    Too early for anything more to get done here.


Ongoing tasks

    The following are ongoing TO-DO items which we should attempt to
    work on without hoping for completion by any particular date.

    - Documentation: complete the distribution and installation
      manuals.

    - Documentation: complete the documentation for new-style
      classes.

    - Look over the Demos/ directory and update where required (Andrew
      Kuchling has done a lot of this)

    - New tests.

    - Fix doc bugs on SF.

    - Remove use of deprecated features in the core.

    - Document deprecated features appropriately.

    - Mark deprecated C APIs with Py_DEPRECATED.

    - Deprecate modules which are unmaintained, or perhaps make a new
      category for modules 'Unmaintained'

    - In general, lots of cleanup so it is easier to move forward.


Open issues

    None at this time.


Carryover features from Python 2.3

    - The import lock could use some redesign.  (SF 683658.)

    - Set API issues; is the sets module perfect?

      I expect it's good enough to stop polishing it until we've had
      more widespread user experience.

    - A nicer API to open text files, replacing the ugly (in some
      people's eyes) "U" mode flag.  There's a proposal out there to
      have a new built-in type textfile(filename, mode, encoding).
      (Shouldn't it have a bufsize argument too?)

      Ditto.

    - New widgets for Tkinter???

      Has anyone gotten the time for this?  *Are* there any new
      widgets in Tk 8.4?  Note that we've got better Tix support
      already (though not on Windows yet).

    - Fredrik Lundh's basetime proposal:
      http://effbot.org/ideas/time-type.htm

      I believe this is dead now.

    - PEP 304 (Controlling Generation of Bytecode Files by Montanaro)
      seems to have lost steam.

    - For a class defined inside another class, the __name__ should be
      "outer.inner", and pickling should work.  (SF 633930.  I'm no
      longer certain this is easy or even right.)

    - reST is going to be used a lot in Zope3.  Maybe it could become
      a standard library module?  (Since reST's author thinks it's too
      instable, I'm inclined not to do this.)

    - Decide on a clearer deprecation policy (especially for modules)
      and act on it.  For a start, see this message from Neil Norwitz:
      http://mail.python.org/pipermail/python-dev/2002-April/023165.html
      There seems insufficient interest in moving this further in an
      organized fashion, and it's not particularly important.

    - Provide alternatives for common uses of the types module;
      Skip Montanaro has posted a proto-PEP for this idea:
      http://mail.python.org/pipermail/python-dev/2002-May/024346.html
      There hasn't been any progress on this, AFAICT.

    - Use pending deprecation for the types and string modules.  This
      requires providing alternatives for the parts that aren't
      covered yet (e.g. string.whitespace and types.TracebackType).
      It seems we can't get consensus on this.

    - Deprecate the buffer object.
      http://mail.python.org/pipermail/python-dev/2002-July/026388.html
      http://mail.python.org/pipermail/python-dev/2002-July/026408.html
      It seems that this is never going to be resolved.

    - PEP 269  Pgen Module for Python                       Riehl

      (Some necessary changes are in; the pgen module itself needs to
      mature more.)

    - Add support for the long-awaited Python catalog.  Kapil
      Thangavelu has a Zope-based implementation that he demoed at
      OSCON 2002.  Now all we need is a place to host it and a person
      to champion it.  (Some changes to distutils to support this are
      in, at least.)

    - PEP 266  Optimizing Global Variable/Attribute Access  Montanaro
      PEP 267  Optimized Access to Module Namespaces        Hylton
      PEP 280  Optimizing access to globals                 van Rossum

      These are basically three friendly competing proposals.  Jeremy
      has made a little progress with a new compiler, but it's going
      slow and the compiler is only the first step.  Maybe we'll be
      able to refactor the compiler in this release.  I'm tempted to
      say we won't hold our breath.  In the mean time, Oren Tirosh has
      a much simpler idea that may give a serious boost to the
      performance of accessing globals and built-ins, by optimizing
      and inlining the dict access:
      http://tothink.com/python/fastnames/

    - Lazily tracking tuples?
      http://mail.python.org/pipermail/python-dev/2002-May/023926.html
      http://www.python.org/sf/558745
      Not much enthusiasm I believe.

    - PEP 286  Enhanced Argument Tuples                     von Loewis

      I haven't had the time to review this thoroughly.  It seems a
      deep optimization hack (also makes better correctness guarantees
      though).

    - Make 'as' a keyword.  It has been a pseudo-keyword long enough.
      Too much effort to bother.


Copyright

    This document has been placed in the public domain.



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