Python 3000 Release Notes ========================= Release notes describe unfinished work in particular releases. Please report bugs to http://bugs.python.org/. Version 3.0a2 - Release Date 07-Dec-2007 ---------------------------------------- * The AMD64 Windows installer doesn't contain Tcl/Tk, and hence IDLE won't work. This is because Tcl doesn't compile at all on this platform. * The 32bit build for the Win32/x86 platform is optimized with PGO (profile guided optimization). Please read Microsoft's docs for `PGO <http://msdn2.microsoft.com/en-us/library/e7k32f4k(VS.90).aspx>`_ if you are interested in details. Preliminary benchmarks have shown a speedup of about 10% in PyBench. Real world applications may gain more or less speedup. * The Tools directory contains a copy of the 2to3 conversion tool. Note that 2to3 itself must be run with Python 2.5! * SSL support is back! However, while the tests pass, the SSL code appears to be leaking quite a bit, and there are still bugs. We'll be working on this for the next release. * On Windows, Python can't be run from a directory with non ASCII chars in its path name (`bug #1342 <http://bugs.python.org/issue1342>`_). * On Windows, the module doc server (pydocgui.pyw) is crashing. * On Windows, the menus in IDLE are broken. * The current releases of Cygwin and MinGW can't create extensions for the official Python 3.0 binary. The necessary modifications to Cygwin are already in its CVS. Look out for a new Cygwin release! * Otherwise, the 3.0a1 release notes below still apply, except hashlib no longer requires openssl, and IDLE now seems fine (except on Windows). Version 3.0a1 - Release Date 31-Aug-2007 ---------------------------------------- * SSL support is disabled. This causes test_ssl to be skipped. The new SSL support in the 2.6 trunk (with server-side support and certificate verification) will be ported for 3.0a2. * If you don't have `openssl <http://www.openssl.org>`_ installed, or a version older than 0.9.7, hashlib is non-functional, which means there is no way to compute MD5 checksums. This breaks some modules. * Platform support is reduced. We've mostly tested on Linux, OSX, and Windows. Solaris is also supported (somewhat). * There may be additional issues on 64-bit architectures. * There are still some open issues on Windows. * Some new features are very fresh, and probably contain bugs: the new format() method on strings (PEP 3101), the strict separation of bytes and strings, the new buffer API (PEP 3118). * IDLE still has some open issues. If you can't run it at all, try "idle -n" which disables the separate subprocess for the interpreter.