mirror of https://github.com/python/cpython.git
1.2beta news
This commit is contained in:
Guido van Rossum
parent
58e4a1e0cb
commit
5426ab33d9
192
Misc/NEWS
192
Misc/NEWS
|
|
@ -1,161 +1,67 @@
|
|||
===================================
|
||||
==> Release 1.1.1 (10 Nov 1994) <==
|
||||
==> Release 1.2 <==
|
||||
===================================
|
||||
|
||||
This is a pure bugfix release again. See the ChangeLog file for details.
|
||||
|
||||
One exception: a few new features were added to tkinter.
|
||||
- Most known bugs have been fixed. For example the pow(2,2,3L) bug on
|
||||
Linux has been fixed. Also the re-entrancy problems with __del__ have
|
||||
been fixed.
|
||||
|
||||
- Most known memory leaks have been fixed.
|
||||
|
||||
=================================
|
||||
==> Release 1.1 (11 Oct 1994) <==
|
||||
=================================
|
||||
- Phase 2 of the Great Renaming has been executed. The header files
|
||||
now use the new names (PyObject instead of object, etc.). The linker
|
||||
also sees the new names. Most source files still use the old names,
|
||||
by virtue of the rename2.h header file. If you include Python.h, you
|
||||
only see the new names. Dynamically linked modules have to be
|
||||
recompiled.
|
||||
|
||||
This release adds several new features, improved configuration and
|
||||
portability, and fixes more bugs than I can list here (including some
|
||||
memory leaks).
|
||||
- The hooks for implementing "safe-python" (better called "restricted
|
||||
execution") are in place. Specifically, the import statement is
|
||||
implemented by calling the built-in function __import__, and the
|
||||
built-in names used in a particular scope are taken from the
|
||||
dictionary __builtins__ in that scope's global dictionary. See also
|
||||
the new module rexec.py.
|
||||
|
||||
The source compiles and runs out of the box on more platforms than
|
||||
ever -- including Windows NT. Makefiles or projects for a variety of
|
||||
non-UNIX platforms are provided.
|
||||
- The import statement now supports the syntax "import a.b.c" and
|
||||
"from a.b.c import name". No meaningful implementation exists, but
|
||||
one can be prototyped by replacing the built-in __import__ function.
|
||||
|
||||
APOLOGY: some new features are badly documented or not at all. I had
|
||||
the choice -- postpone the new release indefinitely, or release it
|
||||
now, with working code but some undocumented areas. The problem with
|
||||
postponing the release is that people continue to suffer from existing
|
||||
bugs, and send me patches based on the previous release -- which I
|
||||
can't apply directly because my own source has changed. Also, some
|
||||
new modules (like signal) have been ready for release for quite some
|
||||
time, and people are anxiously waiting for them. In the case of
|
||||
signal, the interface is simple enough to figure out without
|
||||
documentation (if you're anxious enough :-). In this case it was not
|
||||
simple to release the module on its own, since it relies on many small
|
||||
patches elsewhere in the source.
|
||||
- All machinery used by the import statement (or the built-in
|
||||
__import__ function) is now exposed through the new built-in module
|
||||
"imp". All dynamic loading machinery is moved to the new file
|
||||
importdl.c.
|
||||
|
||||
For most new Python modules, the source code contains comments that
|
||||
explain how to use them. Documentation for the Tk interface, written
|
||||
by Matt Conway, is available as tkinter-doc.tar.gz from the Python
|
||||
home and mirror ftp sites (see Misc/FAQ for ftp addresses). For the
|
||||
new operator overloading facilities, have a look at Demo/classes:
|
||||
Complex.py and Rat.py show how to implement a numeric type without and
|
||||
with __coerce__ method. Also have a look at the end of the Tutorial
|
||||
document (Doc/tut.tex). If you're still confused: use the newsgroup
|
||||
or mailing list.
|
||||
- Persistent storage is supported through the use of the module
|
||||
"pickle" and "shelve" (implemented in Python). Read the .py files for
|
||||
more info. There's also a "copy" module implementing deepcopy and
|
||||
normal (shallow) copy operations.
|
||||
|
||||
- Documentation strings for many objects types are accessible through
|
||||
the __doc__ attribute. Modules, classes and functions support special
|
||||
syntax to initialize the __doc__ attribute: if the first statement
|
||||
consists of just a string literal, that string literal becomes the
|
||||
value of the __doc__ attribute. The default __doc__ attribute is
|
||||
None. Documentation strings are also supported for built-in
|
||||
functions, types and modules; however this feature hasn't been widely
|
||||
used yet. See the 'new' module for an example.
|
||||
|
||||
New language features:
|
||||
- The __coerce__ and __cmp__ methods for user-defined classes once
|
||||
again work as expected. As an example, there's a new standard class
|
||||
Complex in the library.
|
||||
|
||||
- More flexible operator overloading for user-defined classes
|
||||
(INCOMPATIBLE WITH PREVIOUS VERSIONS!) See end of tutorial.
|
||||
- The functions posix.popen() and posix.fdopen() now have an optional
|
||||
third argument to specify the buffer size, and default their second
|
||||
(mode) argument to 'r' -- in analogy to the builtin open() function.
|
||||
|
||||
- Classes can define methods named __getattr__, __setattr__ and
|
||||
__delattr__ to trap attribute accesses. See end of tutorial.
|
||||
- Improved support for the Apple Macintosh, e.g. interfaces to (a few)
|
||||
resource mananger functions, get/set file type and creator, gestalt,
|
||||
sound manager, speech manager, MacTCP, comm toolbox, and the think C
|
||||
console library. (Sorry, no Mac binary yet. Will try to produce one
|
||||
shortly, plus instructions on how to compile with THINK C 6.0.)
|
||||
|
||||
- Classes can define method __call__ so instances can be called
|
||||
directly. See end of tutorial.
|
||||
|
||||
|
||||
New support facilities:
|
||||
|
||||
- The Makefiles (for the base interpreter as well as for extensions)
|
||||
now support creating dynamically loadable modules if the platform
|
||||
supports shared libraries.
|
||||
|
||||
- Passing the interpreter a .pyc file as script argument will execute
|
||||
the code in that file. (On the Mac such files can be double-clicked!)
|
||||
|
||||
- New Freeze script, to create independently distributable "binaries"
|
||||
of Python programs -- look in Demo/freeze
|
||||
|
||||
- Improved h2py script (in Demo/scripts) follows #includes and
|
||||
supports macros with one argument
|
||||
|
||||
- New module compileall generates .pyc files for all modules in a
|
||||
directory (tree) without also executing them
|
||||
|
||||
- Threads should work on more platforms
|
||||
|
||||
|
||||
New built-in modules:
|
||||
|
||||
- tkinter (support for Tcl's Tk widget set) is now part of the base
|
||||
distribution
|
||||
|
||||
- signal allows catching or ignoring UNIX signals (unfortunately still
|
||||
undocumented -- any taker?)
|
||||
|
||||
- termios provides portable access to POSIX tty settings
|
||||
|
||||
- curses provides an interface to the System V curses library
|
||||
|
||||
- syslog provides an interface to the (BSD?) syslog daemon
|
||||
|
||||
- 'new' provides interfaces to create new built-in object types
|
||||
(e.g. modules and functions)
|
||||
|
||||
- sybase provides an interface to SYBASE database
|
||||
|
||||
|
||||
New/obsolete built-in methods:
|
||||
|
||||
- callable(x) tests whether x can be called
|
||||
|
||||
- sockets now have a setblocking() method
|
||||
|
||||
- sockets no longer have an allowbroadcast() method
|
||||
|
||||
- socket methods send() and sendto() return byte count
|
||||
|
||||
|
||||
New standard library modules:
|
||||
|
||||
- types.py defines standard names for built-in types, e.g. StringType
|
||||
|
||||
- urlparse.py parses URLs according to the latest Internet draft
|
||||
|
||||
- uu.py does uuencode/uudecode (not the fastest in the world, but
|
||||
quicker than installing uuencode on a non-UNIX machine :-)
|
||||
|
||||
- New, faster and more powerful profile module.py
|
||||
|
||||
- mhlib.py provides interface to MH folders and messages
|
||||
|
||||
|
||||
New facilities for extension writers (unfortunately still
|
||||
undocumented):
|
||||
|
||||
- newgetargs() supports optional arguments and improved error messages
|
||||
|
||||
- O!, O& O? formats for getargs allow more versatile type checking of
|
||||
non-standard types
|
||||
|
||||
- can register pending asynchronous callback, to be called the next
|
||||
time the Python VM begins a new instruction (Py_AddPendingCall)
|
||||
|
||||
- can register cleanup routines to be called when Python exits
|
||||
(Py_AtExit)
|
||||
|
||||
- makesetup script understands C++ files in Setup file (use file.C
|
||||
or file.cc)
|
||||
|
||||
- Make variable OPT is passed on to sub-Makefiles
|
||||
|
||||
- An init<module>() routine may signal an error by not entering
|
||||
the module in the module table and raising an exception instead
|
||||
|
||||
- For long module names, instead of foobarbletchmodule.c you can
|
||||
use foobarbletch.c
|
||||
|
||||
- getintvalue() and getfloatvalue() try to convert any object
|
||||
instead of requiring an "intobject" or "floatobject"
|
||||
|
||||
- All the [new]getargs() formats that retrieve an integer value
|
||||
will now also work if a float is passed
|
||||
|
||||
- C function listtuple() converts list to tuple, fast
|
||||
|
||||
- You should now call sigcheck() instead of intrcheck();
|
||||
sigcheck() also sets an exception when it returns nonzero
|
||||
- Used autoconf 2.0 to generate the configure script. Adapted
|
||||
configure.in to use the new features in autoconf 2.0.
|
||||
|
||||
|
||||
--Guido van Rossum, CWI, Amsterdam <Guido.van.Rossum@cwi.nl>
|
||||
|
|
|
|||
Loading…
Reference in New Issue