Very draft version of 2.5 release schedule.
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Neal Norwitz
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@ -60,6 +60,7 @@ Index by Category
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I 306 How to Change Python's Grammar Hudson
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I 333 Python Web Server Gateway Interface v1.0 Eby
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I 339 How to Change CPython's Bytecode Cannon
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I 356 Python 2.5 Release Schedule Norwitz, et al
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I 3000 Python 3.0 Plans Kuchling, Cannon
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Accepted PEPs (accepted; may not be implemented yet)
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@ -406,6 +407,7 @@ Numerical Index
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S 353 Using ssize_t as the index type von Loewis
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S 354 Enumerations in Python Finney
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S 355 Path - Object oriented filesystem paths Lindqvist
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I 356 Python 2.5 Release Schedule Norwitz, et al
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SR 666 Reject Foolish Indentation Creighton
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S 754 IEEE 754 Floating Point Special Values Warnes
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I 3000 Python 3.0 Plans Kuchling, Cannon
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@ -0,0 +1,212 @@
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PEP: 356
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Title: Python 2.5 Release Schedule
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Version: $Revision$
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Author: Neal Norwitz
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Status: Draft
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Type: Informational
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Created: 07-Feb-2006
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Python-Version: 2.5
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Post-History:
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Abstract
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This document describes the development and release schedule for
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Python 2.5. The schedule primarily concerns itself with PEP-sized
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items. Small features may be added up to and including the first
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beta release. Bugs may be fixed until the final release.
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There will be at least two alpha releases, two beta releases, and
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one release candidate. The release date is planned 31 October 2006.
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Release Manager
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TBD (Anthony Baxter?)
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TBD (Martin von Loewis?) is building the Windows installers,
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TBD (Fred Drake?) the doc packages,
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TBD (Sean Reifschneider?) the RPMs.
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Release Schedule
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alpha 1: June 2006 [planned]
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alpha 2: July 2006 [planned]
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beta 1: August 2006 [planned]
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beta 2: September 2006 [planned]
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rc 1: October 2006 [planned]
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final: October 2006 [planned]
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Completed features for 2.5
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PEP 309: Partial Function Application
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PEP 314: Metadata for Python Software Packages v1.1
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(should PEP 314 be marked final?)
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PEP 341: Unified try-except/try-finally to try-except-finally
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PEP 342: Coroutines via Enhanced Generators
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- AST-based compiler
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- Add support for reading shadow passwords (www.python.org/sf/579435)
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- any()/all() builtin truth functions
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- new hashlib module add support for SHA-224, -256, -384, and -512
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(replaces old md5 and sha modules)
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Planned features for 2.5
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PEP 308: Conditional Expressions
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PEP 328: Absolute/Relative Imports
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PEP 343: The "with" Statement
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PEP 352: Required Superclass for Exceptions
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PEP 353: Using ssize_t as the index type
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Deferred until 2.6:
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- None
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Ongoing tasks
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The following are ongoing TO-DO items which we should attempt to
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work on without hoping for completion by any particular date.
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- Documentation: complete the distribution and installation
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manuals.
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- Documentation: complete the documentation for new-style
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classes.
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- Look over the Demos/ directory and update where required (Andrew
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Kuchling has done a lot of this)
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- New tests.
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- Fix doc bugs on SF.
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- Remove use of deprecated features in the core.
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- Document deprecated features appropriately and update PEP 3000.
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- Mark deprecated C APIs with Py_DEPRECATED.
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- Deprecate modules which are unmaintained, or perhaps make a new
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category for modules 'Unmaintained'
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- In general, lots of cleanup so it is easier to move forward.
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Open issues
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This PEP needs to be updated and release managers confirmed.
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Carryover features from Python 2.4
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Are any of these done or planned for 2.5?
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- Deprecate and/or remove the modules listed in PEP 4 (posixfile,
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gopherlib, pre, others)
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- Remove support for platforms as described in PEP 11.
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- Finish implementing the Distutils bdist_dpkg command. (AMK)
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- It would be nice if the built-in SSL socket type could be used
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for non-blocking SSL I/O. Currently packages such as Twisted
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which implement async servers using SSL have to require third-party
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packages such as pyopenssl.
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- reST is going to be used a lot in Zope3. Maybe it could become
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a standard library module? (Since reST's author thinks it's too
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unstable, I'm inclined not to do this.)
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Carryover features from Python 2.3
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- The import lock could use some redesign. (SF 683658.)
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- A nicer API to open text files, replacing the ugly (in some
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people's eyes) "U" mode flag. There's a proposal out there to
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have a new built-in type textfile(filename, mode, encoding).
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(Shouldn't it have a bufsize argument too?)
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- New widgets for Tkinter???
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Has anyone gotten the time for this? *Are* there any new
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widgets in Tk 8.4? Note that we've got better Tix support
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already (though not on Windows yet).
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- PEP 304 (Controlling Generation of Bytecode Files by Montanaro)
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seems to have lost steam.
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- For a class defined inside another class, the __name__ should be
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"outer.inner", and pickling should work. (SF 633930. I'm no
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longer certain this is easy or even right.)
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- Decide on a clearer deprecation policy (especially for modules)
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and act on it. For a start, see this message from Neal Norwitz:
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http://mail.python.org/pipermail/python-dev/2002-April/023165.html
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There seems insufficient interest in moving this further in an
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organized fashion, and it's not particularly important.
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- Provide alternatives for common uses of the types module;
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Skip Montanaro has posted a proto-PEP for this idea:
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http://mail.python.org/pipermail/python-dev/2002-May/024346.html
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There hasn't been any progress on this, AFAICT.
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- Use pending deprecation for the types and string modules. This
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requires providing alternatives for the parts that aren't
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covered yet (e.g. string.whitespace and types.TracebackType).
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It seems we can't get consensus on this.
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- PEP 262 Database of Installed Python Packages Kuchling
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This turns out to be useful for Jack Jansen's Python installer,
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so the database is worth implementing. Code will go in
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sandbox/pep262.
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- PEP 269 Pgen Module for Python Riehl
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(Some necessary changes are in; the pgen module itself needs to
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mature more.)
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- PEP 266 Optimizing Global Variable/Attribute Access Montanaro
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PEP 267 Optimized Access to Module Namespaces Hylton
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PEP 280 Optimizing access to globals van Rossum
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These are basically three friendly competing proposals. Jeremy
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has made a little progress with a new compiler, but it's going
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slowly and the compiler is only the first step. Maybe we'll be
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able to refactor the compiler in this release. I'm tempted to
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say we won't hold our breath.
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- Lazily tracking tuples?
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http://mail.python.org/pipermail/python-dev/2002-May/023926.html
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http://www.python.org/sf/558745
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Not much enthusiasm I believe.
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- PEP 286 Enhanced Argument Tuples von Loewis
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I haven't had the time to review this thoroughly. It seems a
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deep optimization hack (also makes better correctness guarantees
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though).
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- Make 'as' a keyword. It has been a pseudo-keyword long enough.
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Too much effort to bother.
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Copyright
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This document has been placed in the public domain.
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Local Variables:
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mode: indented-text
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indent-tabs-mode: nil
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End:
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