Convert to rst. Add section on Windows lifecycle.
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Martin v. Löwis
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pep-0011.txt
198
pep-0011.txt
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@ -5,11 +5,13 @@ Last-Modified: $Date$
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Author: martin@v.loewis.de (Martin von Löwis)
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Status: Active
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Type: Process
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Content-Type: text/x-rst
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Created: 07-Jul-2002
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Post-History: 18-Aug-2007
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Abstract
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--------
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This PEP documents operating systems (platforms) which are not
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supported in Python anymore. For some of these systems,
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@ -19,6 +21,7 @@ Abstract
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Rationale
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---------
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Over time, the Python source code has collected various pieces of
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platform-specific code, which, at some point in time, was
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@ -39,6 +42,7 @@ Rationale
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Unsupporting platforms
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----------------------
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If a certain platform that currently has special code in it is
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deemed to be without Python users, a note must be posted in this
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@ -66,6 +70,7 @@ Unsupporting platforms
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Resupporting platforms
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----------------------
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If a user of a platform wants to see this platform supported
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again, he may volunteer to maintain the platform support. Such an
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@ -73,119 +78,150 @@ Resupporting platforms
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to remove the build-time errors, and perform any other maintenance
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work for the platform.
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Microsoft Windows
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-----------------
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Microsoft has established a policy called product support lifecycle
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[1]_. Each product's lifecycle has a mainstream support phase, where
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the product is generally commercially available, and an extended
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support phase, where paid support is still available, and certain bug
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fixes are released (in particular security fixes).
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Python's Windows support now follows this lifecycle. A new feature
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release X.Y.0 will support all Windows releases whose extended support
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phase is not yet expired. Subsequent bug fix releases will support
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the same Windows releases as the original feature release (even if
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the extended support phase has ended).
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Because of this policy, no further Windows releases need to be listed
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in this PEP.
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Each feature release is built by a specific version of Microsoft
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Visual Studio. That version should have mainstream support when the
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release is made. Developers of extension modules will generally need
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to use the same Visual Studio release; they are concerned both with
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the availability of the versions they need to use, and with keeping
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the zoo of versions small. The Python source tree will keep
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unmaintained build files for older Visual Studio releases, for which
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patches will be accepted. Such build files will be removed from the
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source tree 3 years after the extended support for the compiler has
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ended (but continue to remain available in revision control).
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No-longer-supported platforms
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-----------------------------
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Name: MS-DOS, MS-Windows 3.x
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Unsupported in: Python 2.0
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Code removed in: Python 2.1
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* | Name: MS-DOS, MS-Windows 3.x
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| Unsupported in: Python 2.0
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| Code removed in: Python 2.1
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Name: SunOS 4
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Unsupported in: Python 2.3
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Code removed in: Python 2.4
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* | Name: SunOS 4
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| Unsupported in: Python 2.3
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| Code removed in: Python 2.4
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Name: DYNIX
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Unsupported in: Python 2.3
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Code removed in: Python 2.4
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* | Name: DYNIX
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| Unsupported in: Python 2.3
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| Code removed in: Python 2.4
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Name: dgux
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Unsupported in: Python 2.3
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Code removed in: Python 2.4
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* | Name: dgux
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| Unsupported in: Python 2.3
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| Code removed in: Python 2.4
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Name: Minix
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Unsupported in: Python 2.3
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Code removed in: Python 2.4
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* | Name: Minix
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| Unsupported in: Python 2.3
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| Code removed in: Python 2.4
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Name: Irix 4 and --with-sgi-dl
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Unsupported in: Python 2.3
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Code removed in: Python 2.4
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* | Name: Irix 4 and --with-sgi-dl
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| Unsupported in: Python 2.3
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| Code removed in: Python 2.4
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Name: Linux 1
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Unsupported in: Python 2.3
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Code removed in: Python 2.4
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* | Name: Linux 1
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| Unsupported in: Python 2.3
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| Code removed in: Python 2.4
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Name: Systems defining __d6_pthread_create (configure.in)
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Unsupported in: Python 2.3
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Code removed in: Python 2.4
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* | Name: Systems defining __d6_pthread_create (configure.in)
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| Unsupported in: Python 2.3
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| Code removed in: Python 2.4
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Name: Systems defining PY_PTHREAD_D4, PY_PTHREAD_D6,
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* | Name: Systems defining PY_PTHREAD_D4, PY_PTHREAD_D6,
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or PY_PTHREAD_D7 in thread_pthread.h
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Unsupported in: Python 2.3
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Code removed in: Python 2.4
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| Unsupported in: Python 2.3
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| Code removed in: Python 2.4
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Name: Systems using --with-dl-dld
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Unsupported in: Python 2.3
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Code removed in: Python 2.4
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* | Name: Systems using --with-dl-dld
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| Unsupported in: Python 2.3
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| Code removed in: Python 2.4
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Name: Systems using --without-universal-newlines,
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Unsupported in: Python 2.3
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Code removed in: Python 2.4
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* | Name: Systems using --without-universal-newlines,
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| Unsupported in: Python 2.3
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| Code removed in: Python 2.4
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Name: MacOS 9
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Unsupported in: Python 2.4
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Code removed in: Python 2.4
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* | Name: MacOS 9
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| Unsupported in: Python 2.4
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| Code removed in: Python 2.4
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Name: Systems using --with-wctype-functions
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Unsupported in: Python 2.6
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Code removed in: Python 2.6
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* | Name: Systems using --with-wctype-functions
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| Unsupported in: Python 2.6
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| Code removed in: Python 2.6
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Name: Win9x, WinME, NT4
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Unsupported in: Python 2.6 (warning in 2.5 installer)
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Code removed in: Python 2.6
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* | Name: Win9x, WinME, NT4
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| Unsupported in: Python 2.6 (warning in 2.5 installer)
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| Code removed in: Python 2.6
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Name: AtheOS
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Unsupported in: Python 2.6 (with "AtheOS" changed to "Syllable")
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Build broken in: Python 2.7 (edit configure to reenable)
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Code removed in: Python 3.0
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Details: http://www.syllable.org/discussion.php?id=2320
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* | Name: AtheOS
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| Unsupported in: Python 2.6 (with "AtheOS" changed to "Syllable")
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| Build broken in: Python 2.7 (edit configure to reenable)
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| Code removed in: Python 3.0
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| Details: http://www.syllable.org/discussion.php?id=2320
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Name: BeOS
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Unsupported in: Python 2.6 (warning in configure)
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Build broken in: Python 2.7 (edit configure to reenable)
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Code removed in: Python 3.0
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* | Name: BeOS
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| Unsupported in: Python 2.6 (warning in configure)
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| Build broken in: Python 2.7 (edit configure to reenable)
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| Code removed in: Python 3.0
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Name: Systems using Mach C Threads
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Unsupported in: Python 3.2
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Code removed in: Python 3.3
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* | Name: Systems using Mach C Threads
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| Unsupported in: Python 3.2
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| Code removed in: Python 3.3
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Name: SunOS lightweight processes (LWP)
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Unsupported in: Python 3.2
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Code removed in: Python 3.3
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* | Name: SunOS lightweight processes (LWP)
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| Unsupported in: Python 3.2
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| Code removed in: Python 3.3
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Name: Systems using --with-pth (GNU pth threads)
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Unsupported in: Python 3.2
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Code removed in: Python 3.3
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* | Name: Systems using --with-pth (GNU pth threads)
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| Unsupported in: Python 3.2
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| Code removed in: Python 3.3
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Name: Systems using Irix threads
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Unsupported in: Python 3.2
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Code removed in: Python 3.3
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* | Name: Systems using Irix threads
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| Unsupported in: Python 3.2
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| Code removed in: Python 3.3
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Name: OSF* systems (issue 8606)
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Unsupported in: Python 3.2
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Code removed in: Python 3.3
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* | Name: OSF* systems (issue 8606)
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| Unsupported in: Python 3.2
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| Code removed in: Python 3.3
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Name: OS/2
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Unsupported in: Python 3.3
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Code removed in: Python 3.4
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* | Name: OS/2
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| Unsupported in: Python 3.3
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| Code removed in: Python 3.4
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Name: VMS
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Unsupported in: Python 3.3
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Code removed in: Python 3.4
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* | Name: VMS
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| Unsupported in: Python 3.3
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| Code removed in: Python 3.4
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Name: Windows 2000
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Unsupported in: Python 3.3
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Code removed in: Python 3.4
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* | Name: Windows 2000
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| Unsupported in: Python 3.3
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| Code removed in: Python 3.4
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Name: Windows systems where COMSPEC points to command.com
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Unsupported in: Python 3.3
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Code removed in: Python 3.4
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* | Name: Windows systems where COMSPEC points to command.com
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| Unsupported in: Python 3.3
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| Code removed in: Python 3.4
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Platform Maintainers
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References
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----------
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Cygwin Jason Tishler (jason@tishler.net)
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More TBD.
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.. [1] http://support.microsoft.com/lifecycle/
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Copyright
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---------
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This document has been placed in the public domain.
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