diff options
| -rw-r--r-- | Misc/NEWS | 118 |
1 files changed, 76 insertions, 42 deletions
@@ -18,36 +18,38 @@ http://starship.python.net/crew/amk/python/writing/new-python/. What's new in 2.0 beta 2 (since beta 1)? ======================================== + Core language, builtins, and interpreter - Add support for unbounded ints in %d,i,u,x,X,o formats; for example - "%d" % 2L**64 == "18446744073709551616" + "%d" % 2L**64 == "18446744073709551616". + +- Add -h and -V command line options to print the usage message and + Python version number and exit immediately. -- Add -h and -V flags to print the usage message and Python version - number and exit immediately.polation. Standard library and extensions -- array: reverse method of array now works. buffer_info now does +- array: reverse() method of array now works. buffer_info() now does argument checking; it still takes no arguments. -- asyncore/asynchat: included most recent version from Sam Rushing +- asyncore/asynchat: Included most recent version from Sam Rushing. -- cgi: accept & or ; as separate characters when parsing form data +- cgi: Accept '&' or ';' as separator characters when parsing form data. -- CGIHTTPServer: now works on Windows (and perhaps even Mac). +- CGIHTTPServer: Now works on Windows (and perhaps even Mac). - ConfigParser: When reading the file, options spelled in upper case - letters are now accessible. + letters are now correctly converted to lowercase. - copy: Copy Unicode objects atomically. -- cPickle: fails gracefully when copy_reg can't be imported +- cPickle: Fail gracefully when copy_reg can't be imported. -- cStringIO: implemented readlines method. +- cStringIO: Implemented readlines() method. -- dbm: Add set and setdefault methods to dbm object. Add constant - library to module that names the library used. Better doc strings +- dbm: Add set() and setdefault() methods to dbm object. Add constant + `library' to module that names the library used. Better doc strings and argument checking. Uses configure to determine which ndbm.h file to include; Berkeley DB's nbdm is now an option. @@ -61,38 +63,39 @@ Standard library and extensions found by the collector will be saved in gc.garbage. This is useful for debugging a program that creates reference cycles. -- httplib: Three changes. Restore support for set_debuglevel feature +- httplib: Three changes: Restore support for set_debuglevel feature of HTTP class. Do not close socket on zero-length response. Do not crash when server sends invalid content-length header. -- mailbox: XXX conformance to maildir specification ??? +- mailbox: Mailbox class conforms better to qmail specifications. -- operator: Add contains, invert, __invert__ as aliases for - __contains__, inv, and __inv__ respectively. +- operator: Add contains(), invert(), __invert__() as aliases for + __contains__(), inv(), and __inv__() respectively. -- os: Add support for popen2 and popen3 on all platforms where fork - exists. +- os: Add support for popen2() and popen3() on all platforms where + fork() exists. (popen4() is still in the works.) -- os: (Windows only) Add startfile function that acts like double- +- os: (Windows only:) Add startfile() function that acts like double- clicking on a file in Explorer (or passing the file name to the DOS "start" command). -- os.path: (Windows, DOS) Treat trailing colon correctly in +- os.path: (Windows, DOS:) Treat trailing colon correctly in os.path.join. os.path.join("a:", "b") yields "a:b". - pickle: Now raises ValueError when an invalid pickle that contains a non-string repr where a string repr was expected. This behavior matches cPickle. -- posixfile: XXX remove __del__ method ??? +- posixfile: Remove broken __del__() method. -- py_compile: support \r in source file +- py_compile: support CR+LF line terminators in source file. - readline: Does not immediately exit when ^C is hit when readline and - threads are configured. Adds defintion of rl_library_version. + threads are configured. Adds defintion of rl_library_version. (The + latter addition requires GNU readline 2.2 or later.) - rfc822: Domain literals returned by AddrlistClass method - getdomainliteral are now properly wrapped in brackets. + getdomainliteral() are now properly wrapped in brackets. - site: sys.setdefaultencoding() should only be called in case the standard default encoding ("ascii") is changed. This saves quite a @@ -100,29 +103,29 @@ Standard library and extensions setdefaultencoding() will initialize the codec registry and the encodings package. -- socket: Support for size hint in readlines method of object returned - by makefile. +- socket: Support for size hint in readlines() method of object returned + by makefile(). -- sre: Added experimental expand method to match objects. Does not +- sre: Added experimental expand() method to match objects. Does not user buffer interface on Unicode strings. Does not hang if group id is followed by whitespace. -- StringIO: size hint in readlines is now supported as documented. +- StringIO: size hint in readlines() is now supported as documented. - struct: Check ranges for bytes and shorts. - urllib: Improved handling of win32 proxy settings. Fixed quote and - quote_plus functions so that the always encode a comma ','. + quote_plus functions so that the always encode a comma. - Tkinter: Image objects are now guaranteed to have unique ids. Set event.delta to zero if Tk version doesn't support mousewheel. Removed some debugging prints. -- UserList: now implements __contains__. +- UserList: now implements __contains__(). -- webbrower: On Windows, use os.startfile instead of os.popen, which - works around a bug in certain versions of Norton AntiVirus that - leads directly to a Blue Screen freeze. +- webbrower: On Windows, use os.startfile() instead of os.popen(), + which works around a bug in Norton AntiVirus 2000 that leads directly + to a Blue Screen freeze. - xml: New version detection code allows PyXML to override standard XML package if PyXML version is greater than 0.6.1. @@ -133,6 +136,7 @@ Standard library and extensions - XXX pyexpat: XXX + C API - Add three new convenience functions for module initialization -- @@ -143,38 +147,47 @@ C API removed and add #error to Python.h if NULL isn't defined after #include of stdio.h. -- Py_PROTO macros that were removed in 2.0b1 have been restored for +- Py_PROTO() macros that were removed in 2.0b1 have been restored for backwards compatibility (at the source level) with old extensions. -- XXX PyOS_sighandler_t, PyOS_getsig, PyOS_setsig +- A wrapper API was added for signal() and sigaction(). Instead of + either function, always use PyOS_getsig() to get a signal handler + and PyOS_setsig() to set one. A new convenience typedef + PyOS_sighandler_t is defined for the type of signal handlers. -- Add PyString_AsStringAndSize call that provides access to the +- Add PyString_AsStringAndSize() function that provides access to the internal data buffer and size of a string object -- or the default encoded version of a Unicode object. +- The standard header <limits.h> is now included by Python.h (if it + exists). + + Internals - On Unix, fix code for finding Python installation directory so that it works when argv[0] is a relative path. -- Added a true unicode_internal_encode function and fixed the - unicode_internal_decode function to support Unicode objects directly +- Added a true unicode_internal_encode() function and fixed the + unicode_internal_decode function() to support Unicode objects directly rather than by generating a copy of the object. - Several of the internal Unicode tables are much smaller now, and the source code should be much friendlier to weaker compilers. + Build and platform-specific issues - Better support of GNU Pth via --with-pth configure option. -- Fix linker problems on Reliant UNIX +- Fix linker problems on Reliant UNIX. - Changes for the benefit of SunOS 4.1.4 (really!). mmapmodule.c: Don't define MS_SYNC to be zero when it is undefined. Added missing prototypes in posixmodule.c. -- Improved support for HP-UX build +- Improved support for HP-UX build -- threads should now be correctly + configured (on HP-UX 10.20 and 11.00). What's new in 2.0 beta 1? @@ -289,7 +302,7 @@ from another list (or lists). The simplest form is: [<expression> for <variable> in <sequence>] For example, [i**2 for i in range(4)] yields the list [0, 1, 4, 9]. -This is more efficient than map() with a lambda. +This is more efficient than a for loop with a list.append() call. You can also add a condition: @@ -297,7 +310,7 @@ You can also add a condition: For example, [w for w in words if w == w.lower()] would yield the list of words that contain no uppercase characters. This is more efficient -than filter() with a lambda. +than a for loop with an if statement and a list.append() call. You can also have nested for loops and more than one 'if' clause. For example, here's a function that flattens a sequence of sequences:: @@ -615,4 +628,25 @@ to ensure that Tcl/Tk can find all its files. [This was new in 1.6] The Windows installer now installs by default in \Python20\ on the default volume, instead of \Program Files\Python-2.0\. + +Updates to the changes between 1.5.2 and 1.6 +-------------------------------------------- + +The 1.6 NEWS file can't be changed after the release is done, so here +is some late-breaking news: + +New APIs in locale.py: normalize(), getdefaultlocale(), resetlocale(), +and changes to getlocale() and setlocale(). + +The new module is now enabled per default. + +It is not true that the encodings codecs cannot be used for normal +strings: the string.encode() (which is also present on 8-bit strings +!) allows using them for 8-bit strings too, e.g. to convert files from +cp1252 (Windows) to latin-1 or vice-versa. + +Japanese codecs are available from Tamito KAJIYAMA: +http://pseudo.grad.sccs.chukyo-u.ac.jp/~kajiyama/python/ + + ====================================================================== |