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added 1.2 news
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Guido van Rossum
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Misc/HISTORY
141
Misc/HISTORY
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@ -6,6 +6,147 @@ This file contains the release messages for previous Python releases
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read on you go back to the dark ages of Python's history.
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===================================
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==> Release 1.2 (13 April 1995) <==
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===================================
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- Changes to Misc/python-mode.el:
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- Wrapping and indentation within triple quote strings should work
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properly now.
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- `Standard' bug reporting mechanism (use C-c C-b)
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- py-mark-block was moved to C-c C-m
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- C-c C-v shows you the python-mode version
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- a basic python-font-lock-keywords has been added for Emacs 19
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font-lock colorizations.
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- proper interaction with pending-del and del-sel modes.
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- New py-electric-colon (:) command for improved outdenting. Also
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py-indent-line (TAB) should handle outdented lines better.
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- New commands py-outdent-left (C-c C-l) and py-indent-right (C-c C-r)
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- The Library Reference has been restructured, and many new and
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existing modules are now documented, in particular the debugger and
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the profiler, as well as the persistency and the WWW/Internet support
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modules.
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- All known bugs have been fixed. For example the pow(2,2,3L) bug on
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Linux has been fixed. Also the re-entrancy problems with __del__ have
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been fixed.
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- All known memory leaks have been fixed.
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- Phase 2 of the Great Renaming has been executed. The header files
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now use the new names (PyObject instead of object, etc.). The linker
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also sees the new names. Most source files still use the old names,
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by virtue of the rename2.h header file. If you include Python.h, you
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only see the new names. Dynamically linked modules have to be
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recompiled. (Phase 3, fixing the rest of the sources, will be
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executed gradually with the release later versions.)
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- The hooks for implementing "safe-python" (better called "restricted
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execution") are in place. Specifically, the import statement is
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implemented by calling the built-in function __import__, and the
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built-in names used in a particular scope are taken from the
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dictionary __builtins__ in that scope's global dictionary. See also
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the new (unsupported, undocumented) module rexec.py.
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- The import statement now supports the syntax "import a.b.c" and
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"from a.b.c import name". No officially supported implementation
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exists, but one can be prototyped by replacing the built-in __import__
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function. A proposal by Ken Manheimer is provided as newimp.py.
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- All machinery used by the import statement (or the built-in
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__import__ function) is now exposed through the new built-in module
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"imp" (see the library reference manual). All dynamic loading
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machinery is moved to the new file importdl.c.
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- Persistent storage is supported through the use of the modules
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"pickle" and "shelve" (implemented in Python). There's also a "copy"
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module implementing deepcopy and normal (shallow) copy operations.
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See the library reference manual.
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- Documentation strings for many objects types are accessible through
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the __doc__ attribute. Modules, classes and functions support special
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syntax to initialize the __doc__ attribute: if the first statement
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consists of just a string literal, that string literal becomes the
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value of the __doc__ attribute. The default __doc__ attribute is
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None. Documentation strings are also supported for built-in
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functions, types and modules; however this feature hasn't been widely
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used yet. See the 'new' module for an example. (Basically, the type
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object's tp_doc field contains the doc string for the type, and the
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4th member of the methodlist structure contains the doc string for the
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method.)
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- The __coerce__ and __cmp__ methods for user-defined classes once
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again work as expected. As an example, there's a new standard class
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Complex in the library.
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- The functions posix.popen() and posix.fdopen() now have an optional
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third argument to specify the buffer size, and default their second
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(mode) argument to 'r' -- in analogy to the builtin open() function.
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The same applies to posixfile.open() and the socket method makefile().
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- The thread.exit_thread() function now raises SystemExit so that
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'finally' clauses are honored and a memory leak is plugged.
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- Improved X11 and Motif support, by Sjoerd Mullender. This extension
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is being maintained and distributed separately.
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- Improved support for the Apple Macintosh, in part by Jack Jansen,
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e.g. interfaces to (a few) resource mananger functions, get/set file
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type and creator, gestalt, sound manager, speech manager, MacTCP, comm
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toolbox, and the think C console library. This is being maintained
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and distributed separately.
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- Improved version for Windows NT, by Mark Hammond. This is being
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maintained and distributed separately.
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- Used autoconf 2.0 to generate the configure script. Adapted
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configure.in to use the new features in autoconf 2.0.
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- It now builds on the NeXT without intervention, even on the 3.3
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Sparc pre-release.
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- Characters passed to isspace() and friends are masked to nonnegative
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values.
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- Correctly compute pow(-3.0, 3).
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- Fix portability problems with getopt (configure now checks for a
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non-GNU getopt).
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- Don't add frozenmain.o to libPython.a.
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- Exceptions can now be classes. ALl built-in exceptions are still
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string objects, but this will change in the future.
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- The socket module exports a long list of socket related symbols.
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(More built-in modules will export their symbolic constants instead of
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relying on a separately generated Python module.)
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- When a module object is deleted, it clears out its own dictionary.
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This fixes a circularity in the references between functions and
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their global dictionary.
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- Changed the error handling by [new]getargs() e.g. for "O&".
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- Dynamic loading of modules using shared libraries is supported for
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several new platforms.
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- Support "O&", "[...]" and "{...}" in mkvalue().
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- Extension to findmethod(): findmethodinchain() (where a chain is a
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linked list of methodlist arrays). The calling interface for
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findmethod() has changed: it now gets a pointer to the (static!)
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methodlist structure rather than just to the function name -- this
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saves copying flags etc. into the (short-lived) method object.
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- The callable() function is now public.
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- Object types can define a few new operations by setting function
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pointers in the type object structure: tp_call defines how an object
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is called, and tp_str defines how an object's str() is computed.
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===================================
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==> Release 1.1.1 (10 Nov 1994) <==
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===================================
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