PEP: 200 Title: Python 2.0 Release Schedule Version: $Revision$ Owner: Jeremy Hylton Python-Version: 2.0 Status: Incomplete Introduction This PEP describes the Python 2.0 release schedule, tracking the status and ownership of the major new features, summarizes discussions held in mailing list forums, and provides URLs for further information, patches, and other outstanding issues. The CVS revision history of this file contains the definitive historical record. Tentative Release Schedule 14-Aug-2000: All 2.0 PEPs finished / feature freeze 28-Aug-2000: 2.0 beta 1 29-Sep-2000: 2.0 final Guidelines for submitting patches and making changes Use good sense when committing changes. You should know what we mean by good sense or we wouldn't have given you commit privileges <0.5 wink>. Some specific examples of good sense include: - Do whatever the dictator tells you. - Discuss any controversial changes on python-dev first. If you get a lot of +1 votes and no -1 votes, make the change. If you get a some -1 votes, think twice; consider asking Guido what he thinks. - If the change is to code you contributed, it probably makes sense for you to fix it. - If the change affects code someone else wrote, it probably makes sense to ask him or her first. - You can use the SF Patch Manager to submit a patch and assign it to someone for review. Any significant new feature must be described in a PEP and approved before it is checked in. Any significant code addition, such as a new module or large patch, must include test cases for the regression test and documentation. A patch should not be checked in until the tests and documentation are ready. If you fix a bug, you should write a test case that would have caught the bug. If you commit a patch from the SF Patch Manager or fix a bug from the Jitterbug database, be sure to reference the patch/bug number in the CVS log message. Also be sure to change the status in the patch manager or bug database (if you have access to the bug database). It is not acceptable for any checked in code to cause the regression test to fail. If a checkin causes a failure, it must be fixed within 24 hours or it will be backed out. All contributed C code must be ANSI C. If possible check it with two different compilers, e.g. gcc and MSVC. All contributed Python code must follow Guido's Python style guide. http://www.python.org/doc/essays/styleguide.html It is understood that any code contributed will be released under an Open Source license. Do not contribute code if it can't be released this way. Failing test cases need to get fixed We need to resolve errors in the regression test suite quickly. Changes should not be committed to the CVS tree unless the regression test runs cleanly with the changes applied. If it fails, there may be bugs lurking in the code. (There may be bugs anyway, but that's another matter.) If the test cases are known to fail, they serve no useful purpose. [what are the "R" and "B" columns supposed to mean? - tim] test case platform R B date reported --------- -------- - - ------------- test_winreg2 Win32 X X 26-Jul-2000 [still fails 15-Aug-2000 for me, on Win98 - tim test test_winreg2 failed -- Writing: 'Test Failed: testHives', expected: 'HKEY_PERFORMANCE_DATA\012' ] test_popen2 Win32 X X 26-Jul-2000 [still fails 15-Aug-2000 for me, on Win98 - tim test test_popen2 crashed -- exceptions.AssertionError : The problem is that the test uses "cat", but there is no such thing under Windows (unless you install it). So it's the test that's broken here, not (necessarily) the code. ] test_fork1 Linux X 26-Jul-2000 just SMP? [no clue; there are probably two bugs here] Previously failing test cases If you find a test bouncing between this section and the previous one, the code it's testing is in trouble! test case platform R B date reported --------- -------- - - ------------- test_winreg Win32 X X 26-Jul-2000 [works 15-Aug-2000 for me, on Win98 - tim] test_mmap Win32 X X 26-Jul-2000 [believe that was fixed by Mark H.] [works 15-Aug-2000 for me, on Win98 - tim] Open items -- should be done/fixed Decoding errors when comparing strings. There is a dictionary bug that prevents objects from being accessible when an exception is raised during hashing or comparison. Accepted and completed * Lockstep iteration ("zip" function) - Barry Warsaw * SRE - Fredrik Lundh [at least I *think* it's done, as of 15-Aug-2000 - tim] * Fix xrange printing behavior - Fred Drake [although I'm not sure what this one was talking about - tim] Accepted and in progress * SyntaxError enhancements - Fredrik Lundh http://www.python.org/pipermail/python-dev/2000-July/012981.html * interface to poll system call - Andrew Kuchling An OO interface to the poll system call will be added to the select module. * Compression of Unicode database - Fredrik Lundh http://hem.passagen.se/eff/bot.htm#456806 * PyErr_SafeFormat / snprintf - owner??? Use snprintf to avoid buffer overflows. Need configure hackery to discovery if it is available on the current platform and a default implementation if it is not. http://www.python.org/pipermail/python-dev/2000-April/010051.html * Support for opcode arguments > 2**16 - Charles Waldman Source files longer than 32K and sequences with more than 32K elements both fail because opcode arguments are limited to 16-bit values. * Range literals - Thomas Wouters Make range(1, 10, 2) == [1:10:2] * List comprehensions - Skip Montanaro (Tim Peters for PEP) Need a coherent proposal. Lots of confusing discussion going on. [note: it's not confusing to Guido - tim] Open: proposed but not accepted or declined * Tim O'Malley's cookie module -- but need different license * test harness for C code - Trent Mick * Eliminated SET_LINENO opcode - Vladimir Marangozov Small optimization achieved by using the code object's lnotab instead of the SET_LINENO instruction. Uses code rewriting technique (that Guido's frowns on) to support debugger, which uses SET_LINENO. http://starship.python.net/~vlad/lineno/ for (working at the time) patches Discussions on python-dev: - http://www.python.org/pipermail/python-dev/2000-April/subject.html Subject: "Why do we need Traceback Objects?" - http://www.python.org/pipermail/python-dev/1999-August/002252.html * Augmented assignment - Thomas Wouters Add += and family, plus Python and C hooks, and API functions. * "import as" - Thomas Wouters Extend the 'import' and 'from ... import' mechanism to enable importing a symbol as another name. * Extended slicing on lists - Michael Hudson Make lists (and other builtin types) handle extended slices. * Merge __getitem__ and __getslice__ - Thomas Wouters Move __getslice__ functionality into __getitem__, using slice objects, for normal slices as well as for extended ones. First step: use getitem if there is no getslice. 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