-This is Python release 1.5 beta
+This is Python release 1.5 beta
+The official release date for this version is Friday, December 12,
What's new in this release?
defined by Python now have a "Py" or "_Py" prefix, and the same is
true for most macros and typedefs.
-If you were an alpha tester, here are the most relevant changes since
-1.5a4 (of course all known bugs have been fixed, leaks plugged, and
-some documentation has been added). The full list of changes since
-1.5a4 is presented at the end of the Misc/NEWS file.
+If you previously downloaded 1.5b1, here are the most relevant changes
+since then (of course all known bugs have been fixed, leaks plugged,
+and some documentation has been added). The full list of changes
+since 1.5b1 is presented at the end of the Misc/NEWS file.
- - Package directories now *require* the presence of __init__.py (or
- .pyc/.pyo as applicable). Packages can now contain shared
+ - Thanks to all who contributed doc strings for library modules!
- - New module 'fileinput' to iterate over the lines of a list of files.
+ - The portability problems caused by indented preprocessor commands
+ and C++ style comments should be gone now.
- - New module 'locale' for localized number formatting and string case
+ - Lots of improvements to python-mode.el again.
- - New module 'xmllib' to parse XML files.
+ - Changes in pickle.py and cPickle.c: when unpickling an instance of
+ a class that doesn't define the __getinitargs__() method, the
+ __init__() constructor is no longer called. This makes a much
+ larger group of classes picklable by default, but may occasionally
+ change semantics. To force calling __init__() on unpickling, define
+ a __getinitargs__() method. Other changes too, in particular
+ cPickle now handles classes defined in packages correctly. The
+ same change applies to copying instances with copy.py.
- - Some more support for Tk extensions (PIL, TIX, BLT, TOGL).
+ - Locale support in the "re" (Perl regular expressions) module. Use
+ the flag re.L (or re.LOCALE) to enable locale-specific matching
+ rules for \w and \b. The in-line syntax for this flag is (?L).
- - Fixed address list parsing in module 'rfc822'.
+ - The built-in function isinstance(x, y) now also succeeds when y is
+ a type object and type(x) is y.
- - More deployment (and only one fix) for the 're' module.
+ - repr() and str() of class and instance objects now reflect the
+ package/module in which the class is defined.
- - New Python mode for Emacs.
+ - Module "ni" has been removed. (If you really need it, it's been
+ renamed to "ni1". Let me know if this causes any problems for you.
+ Package authors are encouraged to write __init__.py files that
+ support both ni and 1.5 package support, so the same version can be
+ used with Python 1.4 as well as 1.5.)
+ - The thread module is now automatically included when threads are
+ configured. (You must remove it from your existing Setup file,
+ since it is now in its own Setup.thread file.)
+ - New command line option "-x" to skip the first line of the script;
+ handy to make executable scripts on non-Unix platforms.
+ - In importdl.c, add the RTLD_GLOBAL to the dlopen() flags. I
+ haven't checked how this affects things, but it should make symbols
+ in one shared library available to the next one.
+ - The Windows configuration adds a new main program, "pythonw", and
+ registers a new extension, ".pyw" that invokes this. This is a
+ standard Python interpreter that does not pop up a console window;
+ handy for pure Tkinter applications. All output to the original
+ stdout and stderr is lost; reading from the original stdin yields
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