135 lines
4.3 KiB
Plaintext
135 lines
4.3 KiB
Plaintext
================================
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==> Release 1.1 (6 Oct 1994) <==
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================================
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This release adds several new features, improved configuration and
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portability, and more fixed bugs than I can list here (including some
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memory leaks).
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The source compiles and runs out of the box on more platforms than
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ever -- including Windows NT. Makefiles or projects for a variety of
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non-UNIX platforms are provided.
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Apology: many new features are badly documented or not at all. I had
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the choice -- postpone the new release indefinitely, or release it
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now, with working code but some undocumented areas...
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New language features:
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- More flexible operator overloading for user-defined classes
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(INCOMPATIBLE WITH PREVIOUS VERSIONS!) See end of tutorial.
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- Classes can define methods named __getattr__, __setattr__ and
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__delattr__ to trap attribute accesses. See end of tutorial.
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- Classes can define method __call__ so instances can be called
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directly. See end of tutorial.
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New support facilities:
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- The Makefiles (for the base interpreter as well as for extensions)
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now support creating dynamically loadable modules if the platform
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supports shared libraries.
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- Passing the interpreter a .pyc file as script argument will execute
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the code in that file. (On the Mac such files can be double-clicked!)
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- New Freeze script, to create independently distributable "binaries"
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of Python programs -- look in Demo/freeze
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- Improved h2py script (in Demo/scripts) follows #includes and
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supports macros with one argument
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- New module compileall generates .pyc files for all modules in a
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directory (tree) without also executing them
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- Threads should work on more platforms
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New built-in modules:
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- tkinter (support for Tcl's Tk widget set) is now part of the base
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distribution
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- signal allows catching or ignoring UNIX signals (unfortunately still
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undocumented -- any taker?)
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- termios provides portable access to POSIX tty settings
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- curses provides an interface to the System V curses library
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- syslog provides an interface to the (BSD?) syslog daemon
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- 'new' provides interfaces to create new built-in object types
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(e.g. modules and functions)
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- sybase provides an interface to SYBASE database
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New/obsolete built-in methods:
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- callable(x) tests whether x can be called
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- sockets now have a setblocking() method
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- sockets no longer have an allowbroadcast() method
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- socket methods send() and sendto() return byte count
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New standard library modules:
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- types.py defines standard names for built-in types, e.g. StringType
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- urlparse.py parses URLs according to the latest Internet draft
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- uu.py does uuencode/uudecode (not the fastest in the world, but
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quicker than installing uuencode on a non-UNIX machine :-)
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- New, faster and more powerful profile module.py
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- mhlib.py provides interface to MH folders and messages
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New facilities for extension writers (unfortunately still
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undocumented):
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- newgetargs() supports optional arguments and improved error messages
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- O!, O& O? formats for getargs allow more versatile type checking of
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non-standard types
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- can register pending asynchronous callback, to be called the next
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time the Python VM begins a new instruction (Py_AddPendingCall)
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- can register cleanup routines to be called when Python exits
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(Py_AtExit)
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- makesetup script understands C++ files in Setup file (use file.C
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or file.cc)
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- Make variable OPT is passed on to sub-Makefiles
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- An init<module>() routine may signal an error by not entering
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the module in the module table and raising an exception instead
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- For long module names, instead of foobarbletchmodule.c you can
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use foobarbletch.c
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- getintvalue() and getfloatvalue() try to convert any object
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instead of requiring an "intobject" or "floatobject"
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- All the [new]getargs() formats that retrieve an integer value
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will now also work if a float is passed
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- C function listtuple() converts list to tuple, fast
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- You should now call sigcheck() instead of intrcheck();
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sigcheck() also sets an exception when it returns nonzero
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--Guido van Rossum, CWI, Amsterdam <Guido.van.Rossum@cwi.nl>
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URL: <http://www.cwi.nl/cwi/people/Guido.van.Rossum.html>
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