mirror of https://github.com/python/cpython.git
Checkpoint checkin of list of changes. Much more to follow, but it's
late...
This commit is contained in:
Guido van Rossum
parent
ff712aa8ab
commit
f0b69f01eb
618
Misc/NEWS
618
Misc/NEWS
|
|
@ -0,0 +1,618 @@
|
|||
|
||||
|
||||
|
||||
New since 1.5a2
|
||||
---------------
|
||||
|
||||
The following items are only relevant if you previously used Python
|
||||
1.5a2:
|
||||
|
||||
- The strftime test should now succeed on Windows and Mac platforms,
|
||||
too. It still fails on some Linux platforms; I believe that this is a
|
||||
problem in the C library on those platforms.
|
||||
|
||||
|
||||
|
||||
What's new in this release?
|
||||
---------------------------
|
||||
|
||||
I haven't kept track closely, so here are just a few highlights. For
|
||||
the final release, I will go through all my RCS logs and distill a
|
||||
complete list. Note that the biggest unfinished project is
|
||||
documentation.
|
||||
|
||||
XXX To be expanded:
|
||||
|
||||
- Tools/webchecker
|
||||
|
||||
- Lee Busby's SIGFPE mods and modules fpectl, fpetest
|
||||
|
||||
- formatter.*Writer.flush
|
||||
|
||||
- dis.{cmp_op, hascompare}
|
||||
|
||||
- ftplib: FTP.ntransfercmd, Netrc, parse150
|
||||
|
||||
- httplib.HTTP_VERSIONS_ACCEPTED
|
||||
|
||||
- new module keyword
|
||||
|
||||
- imghdr recognizes bmp, png
|
||||
|
||||
- mhlib, parsesequence improved
|
||||
|
||||
- mimify base64 support
|
||||
|
||||
- new.function revived
|
||||
|
||||
- popen2.popen3 added
|
||||
|
||||
- new module pprint
|
||||
|
||||
- cgi.FieldStorage: __len__ added
|
||||
|
||||
New exceptions:
|
||||
FloatingPointError
|
||||
Deleted exception:
|
||||
ConflictError
|
||||
|
||||
> audioop.ratecv
|
||||
|
||||
> posix.O_APPEND
|
||||
> posix.O_CREAT
|
||||
> posix.O_DSYNC
|
||||
> posix.O_EXCL
|
||||
> posix.O_NDELAY
|
||||
> posix.O_NOCTTY
|
||||
> posix.O_NONBLOCK
|
||||
> posix.O_RDONLY
|
||||
> posix.O_RDWR
|
||||
> posix.O_RSYNC
|
||||
> posix.O_SYNC
|
||||
> posix.O_TRUNC
|
||||
> posix.O_WRONLY
|
||||
posix.O_TEXT
|
||||
posix.O_BINARY
|
||||
(also in os, of course)
|
||||
|
||||
> regex.get_syntax
|
||||
|
||||
> socket.getprotobyname
|
||||
|
||||
> strop.replace
|
||||
Also string.replace
|
||||
|
||||
- Jack's buffer interface!
|
||||
- supported by regex module!
|
||||
|
||||
- improved dir() semantics
|
||||
|
||||
- posix.error, nt.error renamed to os.error
|
||||
|
||||
- rfc822 getdate_tz and parsedate_tz
|
||||
|
||||
- shelve.*.sync
|
||||
|
||||
- shutil improved interface
|
||||
|
||||
- socket.getprotobynameo
|
||||
|
||||
- _xdrmodule is gone (in favor of structmodule)
|
||||
|
||||
- xdrlib.Unpacker.get_buffer
|
||||
|
||||
- much improved structmodule
|
||||
|
||||
- Tkinter upgraded (as always)
|
||||
|
||||
- new al module for SGI
|
||||
|
||||
- file object readinto methods
|
||||
|
||||
- tktrace???
|
||||
|
||||
Obsolete: cgensupport.[ch] are now in Modules and only linked with glmodule.c.
|
||||
|
||||
- much faster file.read() and readlines() on windows
|
||||
|
||||
======================================================================
|
||||
|
||||
- PyObject_Compare() can now raise an exception. Check with
|
||||
PyErr_Occurred(). The comparison function in an object type may also
|
||||
raise an exception.
|
||||
|
||||
- The slice interface uses an upper bound of INT_MAX when no explicit
|
||||
upper bound is given (e.x. for a[1:]). It used to ask the object for
|
||||
its length and do the calculations.
|
||||
|
||||
- I've completed the Grand Renaming, with the help of Roger Masse and
|
||||
Barry Warsaw. Many other unrelated code reorganizations have also
|
||||
been carried out.
|
||||
|
||||
- As far as I can tell, neither gcc -Wall nor the Microsoft compiler
|
||||
emits a single warning any more when compiling Python.
|
||||
|
||||
- It's much faster (almost twice for pystone.py -- see Tools/scripts.)
|
||||
|
||||
- Unless I hear a lot of protest, private variables with leading
|
||||
double underscore are now a permanent feature of the language. I
|
||||
can't label them "experimental" forever.
|
||||
|
||||
- New extension modules cStringIO.c and cPickle.c, written by Jim
|
||||
Fulton and other folks at Digital Creations. These are much more
|
||||
efficient than their Python counterparts StringIO.py and pickle.py,
|
||||
but don't support subclassing. cPickle.c clocks up to 1000 times
|
||||
faster than pickle.py. The pickle.py module has been updated to make
|
||||
it compatible with the new binary format that cPickle.c produces (by
|
||||
default it produces the old all-ASCII format compatible with the old
|
||||
pickle.py, still much faster than pickle.py; it can read both
|
||||
formats). A new helper module, copy_reg.py, is provided to register
|
||||
extensions to the pickling code. (These are now identical to the
|
||||
release 0.3 from Digital Creations.)
|
||||
|
||||
- New (still experimental) Perl-style regular expression module,
|
||||
re.py, which uses a new interface for matching as well as a new
|
||||
syntax; the new interface avoids the thread-unsafety of the regex
|
||||
interface. This comes with a helper extension reopmodule.c and vastly
|
||||
rewritten regexpr.c. Most work on this was done by Jeffrey Ollie, Tim
|
||||
Peters, and Andrew Kuchling. See the documentation libre.tex. In
|
||||
1.5, the old regex module is still fully supported; in the future, it
|
||||
will become obsolete.
|
||||
|
||||
- New string literal syntax for "raw strings". Prefixing a string
|
||||
literal with the letter r (or R) disables all escape processing in the
|
||||
string; for example, r'\n' is a two-character string consisting of a
|
||||
backslash followed by the letter n. This combines with all forms of
|
||||
string quotes. An embedded quote prefixed with a backslash does not
|
||||
terminate the string, but the backslash is still included in the
|
||||
string; for example, r'\'' is a two-character string consisting of a
|
||||
backslash and a quote. Raw strings are also affectionately known as
|
||||
Robin strings, after their inventor, Robin Friedrich.
|
||||
|
||||
- New project files for Developer Studio (Visual C++) 5.0 for Windows
|
||||
NT (the old VC++ 4.2 Makefile is also still supported, but will
|
||||
eventually be withdrawn due to its bulkiness).
|
||||
|
||||
- New extension module zlibmodule.c, interfacing to the free zlib
|
||||
library (gzip compatible compression). There's also a module gzip.py
|
||||
which provides a higher level interface. Written by Andrew Kuchling
|
||||
and Jeremy Hylton.
|
||||
|
||||
- New tool: faqwiz -- the CGI script that is used to maintain the
|
||||
Python FAQ (http://grail.cnri.reston.va.us/cgi-bin/faqw.py). In
|
||||
Tools/faqwiz.
|
||||
|
||||
- New tool: webchecker -- a simple extensible web robot that, when
|
||||
aimed at a web server, checks that server for dead links. Available
|
||||
are a command line utility as well as a Tkinter based GUI version. In
|
||||
Tools/webchecker. A simplified version of this program is dissected
|
||||
in my article in O'Reilly's WWW Journal, the issue on Scripting
|
||||
Languages (Vol 2, No 2); Scripting the Web with Python (pp 97-120).
|
||||
Includes a parser for robots.txt files by Skip Montanaro.
|
||||
|
||||
- New small tools: cvsfiles.py (prints a list of all files under CVS
|
||||
in a particular directory tree), treesync.py (a rather Guido-specific
|
||||
script to synchronize two source trees, one on Windows NT, the other
|
||||
one on Unix under CVS but accessible from the NT box), and logmerge.py
|
||||
(sort a collection of RCS or CVS logs by date). In Tools/scripts.
|
||||
|
||||
- The freeze script now also works under Windows (NT). Another
|
||||
feature allows the -p option to be pointed at the Python source tree
|
||||
instead of the installation prefix. This was loosely based on part of
|
||||
xfreeze by Sam Rushing and Bill Tutt.
|
||||
|
||||
- A new regression test suite is provided, which tests most of the
|
||||
standard and built-in modules. The regression test is run by invoking
|
||||
the script Lib/test/regrtest.py. Barry Warsaw wrote the test harnass;
|
||||
he and Roger Masse contributed most of the new tests.
|
||||
|
||||
- New standard dialog modules for Tkinter: tkColorChooser.py,
|
||||
tkCommonDialog.py, tkMessageBox.py, tkFileDialog.py, tkSimpleDialog.py
|
||||
These interface with the new Tk dialog scripts. Contributed by
|
||||
Fredrik Lundh.
|
||||
|
||||
- Tkinter.py: when the first Tk object is destroyed, it sets the
|
||||
hiddel global _default_root to None, so that when another Tk object is
|
||||
created it becomes the new default root. Other miscellaneous
|
||||
changes and fixes.
|
||||
|
||||
- Many new pieces of library documentation were contributed, mostly by
|
||||
Andrew Kuchling. Even cmath is now documented! There's also a
|
||||
chapter of the library manual, "libundoc.tex", which provides a
|
||||
listing of all undocumented modules, plus their status (e.g. internal,
|
||||
obsolete, or in need of documentation). Also contributions by Sue
|
||||
Williams, Skip Montanaro, and some module authors who succumbed to
|
||||
pressure to document their own contributed modules :-). Note that
|
||||
printing the documentation now kills fewer trees -- the margins have
|
||||
been reduced.
|
||||
|
||||
- I have started documenting the Python/C API. Unfortunately this
|
||||
project hasn't been completed yet. It will be complete before the
|
||||
final release of Python 1.5, though.
|
||||
|
||||
- The mimify.py module now has documentation, and includes functions
|
||||
to handle the funny encoding you sometimes see in mail headers.
|
||||
|
||||
- The default module search path is now much saner. Both on Unix and
|
||||
Windows, it is essentially derived from the path to the executable
|
||||
($PYTHONHOME can be used to override). The value of $PYTHONPATH on
|
||||
Windows is now inserted in front of the default path, like in Unix
|
||||
(instead of overriding the default path).
|
||||
|
||||
- Support for Win32S (the 32-bit Windows API under Windows 3.1) is
|
||||
basically withdrawn. If it works for you, you're lucky.
|
||||
|
||||
- On Win32 platforms (Windows NT and 95), there's a new extension
|
||||
module, msvcrt.c, which provides various low-level operations defined
|
||||
in the Microsoft Visual C++ Runtime Library. These include locking(),
|
||||
setmode(), get_osfhandle(), set_osfhandle(), and console I/O functions
|
||||
like kbhit(), getch() and putch().
|
||||
|
||||
- The way GNU readline is configured is totally different. The
|
||||
--with-readline configure option is gone. It is now an extension
|
||||
module, which may be loaded dynamically. You must enable it (and
|
||||
specify the correct linraries to link with) in the Modules/Setup file.
|
||||
Importing the module installs some hooks which enable command line
|
||||
editing. When the interpreter shell is invoked interactively, it
|
||||
attempts to import the readline module; when this fails, the default
|
||||
input mechanism is used. The hook variables are PyOS_InputHook and
|
||||
PyOS_ReadlineFunctionPointer. (Code contributed by Lee Busby, with
|
||||
ideas from William Magro.)
|
||||
|
||||
- New Unix extension module resource.c, by Jeremy Hylton, provides
|
||||
access to getrlimit(), getrusage(), setrusage(), getpagesize(), and
|
||||
related symbolic constants.
|
||||
|
||||
- Support for multiple independent interpreters. See Doc/api.tex,
|
||||
functions Py_NewInterpreter() and Py_EndInterpreter(). Since the
|
||||
documentation is incomplete, also see the new Demo/pysvr example
|
||||
(which shows how to use these in a threaded application) and the
|
||||
source code.
|
||||
|
||||
- There is now a Py_Finalize() function which "de-initializes"
|
||||
Python. It is possible to completely restart the interpreter
|
||||
repeatedly by calling Py_Finalize() followed by Py_Initialize(). A
|
||||
change of functionality in Py_Initialize() means that it is now a
|
||||
fatal error to call it while the interpreter is already initialized.
|
||||
The old, half-hearted Py_Cleanup() routine is gone. Use of Py_Exit()
|
||||
is deprecated (it is nothing more than Py_Finalize() followed by
|
||||
exit()).
|
||||
|
||||
- There are no known memory leaks. While Py_Finalize() doesn't free
|
||||
*all* allocated memory (some of it is hard to track down), repeated
|
||||
calls to Py_Finalize() and Py_Initialize() do not create unaccessible
|
||||
heap blocks.
|
||||
|
||||
- New function sys.exc_info() returns the tuple (sys.exc_type,
|
||||
sys.exc_value, sys.exc_traceback) in a thread-safe way.
|
||||
|
||||
- The semantics of try-except have changed subtly so that calling a
|
||||
function in an exception handler that itself raises and catches an
|
||||
exception no longer overwrites the sys.exc_* variables. This also
|
||||
alleviates the problem that objects referenced in a stack frame that
|
||||
caught an exception are kept alive until another exception is caught
|
||||
-- the sys.exc_* variables are restored to their previous value when
|
||||
returning from a function that caught an exception.
|
||||
|
||||
- There is now explicit per-thread state. (Inspired by, but not the
|
||||
same as, Greg Stein's free threading patches.)
|
||||
|
||||
- There is now better support for threading C applications. There are
|
||||
now explicit APIs to manipulate the interpreter lock. Read the source
|
||||
or the Demo/pysvr example; the new functions are
|
||||
PyEval_{Acquire,Release}{Lock,Thread}().
|
||||
|
||||
- New wrappers around malloc() and friends: Py_Malloc() etc. call
|
||||
malloc() and call PyErr_NoMemory() when it fails; PyMem_Malloc() call
|
||||
just malloc(). Use of these wrappers could be essential if multiple
|
||||
memory allocators exist (e.g. when using certain DLL setups under
|
||||
Windows). (Idea by Jim Fulton.)
|
||||
|
||||
- Numerous source cleanups.
|
||||
|
||||
- There's a simple assert statement, and a new exception
|
||||
AssertionError, and a built-in variable __debug__. For example,
|
||||
``assert foo > 0'' is equivalent to ``if __debug__ and not foo > 0:
|
||||
raise AssertionError''. Sorry, the text of the asserted condition is
|
||||
not available; it would be too generate code for this. However, the
|
||||
text is displayed as part of the traceback! There's also a -O option
|
||||
to the interpreter that squeezes SET_LINENO instructions, assert
|
||||
statements and ``if __debug__'' code; it uses and produces .pyo files
|
||||
instead of .pyc files. In the future it should be possible to write
|
||||
external bytecode optimizers that create better optimized .pyo files.
|
||||
|
||||
- New build procedure: a single library, libpython1.5.a, is now built,
|
||||
which contains absolutely everything except for a one-line main()
|
||||
program (which calls Py_Main(argc, argv) to start the interpreter
|
||||
shell). This makes life much simpler for applications that need to
|
||||
embed Python. The serial number of the build is now included in the
|
||||
version string (sys.version).
|
||||
|
||||
- New module keyword.py exports knowledge about Python's built-in
|
||||
keywords. (New version by Ka-Ping Yee.)
|
||||
|
||||
- New examples (Demo/extend) that show how to use the generic
|
||||
extension makefile (Misc/Makefile.pre.in).
|
||||
|
||||
- New module pprint.py (with documentation) which supports
|
||||
pretty-printing of lists, tuples, & dictionaries recursively. By Fred
|
||||
Drake.
|
||||
|
||||
- New module code.py. The function code.compile_command() can
|
||||
determine whether an interactively entered command is complete or not,
|
||||
distinguishing incomplete from invalid input.
|
||||
|
||||
- Module codehack.py is now completely obsolete.
|
||||
|
||||
- Revamped module tokenize.py is much more accurate and has an
|
||||
interface that makes it a breeze to write code to colorize Python
|
||||
source code. Contributed by Ka-Ping Yee.
|
||||
|
||||
- As always, the Macintosh port was done by Jack Jansen. See his
|
||||
separate announcement for the Mac specific source code and the binary
|
||||
distribution(s).
|
||||
|
||||
- A set of patches from Lee Busby has been integrated that make it
|
||||
possible to catch floating point exceptions. Use the configure option
|
||||
--with-fpectl to enable the patches; the extension modules fpectl and
|
||||
fpetest provide control to enable/disable and test the feature,
|
||||
respectively.
|
||||
|
||||
- New extension puremodule.c, by Barry Warsaw, which interfaces to the
|
||||
Purify(TM) C API. See also the file Misc/PURIFY.README. It is also
|
||||
possible to enable Purify by simply setting the PURIFY Makefile
|
||||
variable in the Modules/Setup file.
|
||||
|
||||
- The struct extension module has several new features to control byte
|
||||
order and word size. It supports reading and writing IEEE floats even
|
||||
on platforms where this is not the native format.
|
||||
|
||||
- There is now a library module xdr.py which can read and write the
|
||||
XDR data format as used by Sun RPC, for example. It uses the struct
|
||||
module.
|
||||
|
||||
- Tools/scripts/h2py.py now supports C++ comments.
|
||||
|
||||
- The pystone.py script is upgraded to version 1.1; there was a bug in
|
||||
version 1.0 (distributed with Python 1.4) that leaked memory. Also,
|
||||
in 1.1, the LOOPS variable is incremented to 10000.
|
||||
|
||||
- New C API PyImport_Import() which uses whatever __import__() hook
|
||||
that is installed for the current execution environment. By Jim
|
||||
Fulton.
|
||||
|
||||
- The _tkinter.c extension module has been revamped. It now support
|
||||
Tk versions 4.1 through 8.0; support for 4.0 has been dropped. It
|
||||
works well under Windows and Mac (with the latest Tk ports to those
|
||||
platforms). It also supports threading -- it is safe for one
|
||||
(Python-created) thread to be blocked in _tkinter.mainloop() while
|
||||
other threads modify widgets. (To make the changes visible, those
|
||||
threads must use update_idletasks()method.) Unfortunately, on Windows
|
||||
and Mac, Tk 8.0 no longer supports CreateFileHandler, so
|
||||
_tkinter.createfilehandler is not available on those platforms. I
|
||||
will have to rethink how to interface with Tcl's lower-level event
|
||||
mechanism, or with its channels (which are like Python's file-like
|
||||
objects).
|
||||
|
||||
- New "buffer" interface. Certain objects (e.g. strings, arrays) now
|
||||
support the "buffer" protocol. Buffer objects are acceptable whenever
|
||||
formerly a string was required for a write operation; mutable buffer
|
||||
objects can be the target of a read operation using the
|
||||
f.readinto(buffer). Contribution bty Jack Jansen. (Needs
|
||||
documentation.)
|
||||
|
||||
- In ihooks.py, ModuleLoader.load_module() now closes the file under
|
||||
all circumstances.
|
||||
|
||||
- The tempfile.py module has a new class, TemporaryFile, which creates
|
||||
an open temporary file that will be deleted automatically when
|
||||
closed. This works on Windows and MacOS as well as on Unix. (Jim
|
||||
Fulton.)
|
||||
|
||||
- Changes to the cgi.py module: Most imports are now done at the
|
||||
top of the module, which provides a speedup when using ni (Jim
|
||||
Fulton). The problem with file upload to a Windows platform is solved
|
||||
by using the new tempfile.TemporaryFile class; temporary files are now
|
||||
always opened in binary mode (Jim Fulton). The cgi.escape() function
|
||||
now takes an optional flag argument that quotes '"' to '"'. It
|
||||
is now possible to invoke cgi.py from a command line script, to test
|
||||
cgi scripts more easily outside an http server. There's an optional
|
||||
limit to the size of uploads to POST (Skip Montanaro). Added a
|
||||
'strict_parsing' option to all parsing functions (Jim Fulton). The
|
||||
function parse_qs() now uses urllib.unquote() on the name as well as
|
||||
the value of fields (Clarence Gardner).
|
||||
|
||||
- String interning: dictionary lookups are faster when the lookup
|
||||
string object is the same object as the key in the dictionary, not
|
||||
just a string with the same value. This is done by having a pool of
|
||||
"interned" strings. Most names generated by the interpreter are now
|
||||
automatically interned, and there's a new built-in function intern(s)
|
||||
that returns the interned version of a string. Interned strings are
|
||||
not a different object type, and interning is totally optional, but by
|
||||
interning most keys a speedup of about 15% was obtained for the
|
||||
pystone benchmark.
|
||||
|
||||
- httplib.py: the socket object is no longer closed; all HTTP/1.*
|
||||
versions are now treated the same; and it is now thread-safe (by not
|
||||
using the regex module).
|
||||
|
||||
- BaseHTTPModule.py: treat all HTTP/1.* versions the same.
|
||||
|
||||
- The popen2.py module is now rewritten using a class, which makes
|
||||
access to the standard error stream and the process id of the
|
||||
subprocess possible.
|
||||
|
||||
- The support for shared libraries under AIX is now simpler and more
|
||||
robust. Thanks to Vladimir Marangozov for revamping his own patches!
|
||||
|
||||
- When a module is deleted, its globals are now deleted in two phases.
|
||||
In the first phase, all variables whose name begins with exactly one
|
||||
underscore are replaced by None; in the second phase, all variables
|
||||
are deleted. This makes it possible to have global objects whose
|
||||
destructors depend on other globals. The deletion order within each
|
||||
phase is still random.
|
||||
|
||||
- The Modules/makesetup script now reads a file Setup.local as well as
|
||||
a file Setup. Most changes to the Setup script can be done by editing
|
||||
Setup.local instead, which makes it easier to carry a particular setup
|
||||
over from one release to the next.
|
||||
|
||||
- It is no longer an error for a function to be called without a
|
||||
global variable __builtins__ -- an empty directory will be provided
|
||||
by default.
|
||||
|
||||
- Some speedup by using separate free lists for method objects (both
|
||||
the C and the Python variety) and for floating point numbers.
|
||||
|
||||
- Big speedup by allocating frame objects with a single malloc() call.
|
||||
The Python/C API for frames is changed (you shouldn't be using this
|
||||
anyway).
|
||||
|
||||
- It is now possible for an extension module's init function to fail
|
||||
non-fatally, by calling one of the PyErr_* functions and returning.
|
||||
|
||||
- The PyInt_AS_LONG() and PyFloat_AS_DOUBLE() macros now cast their
|
||||
argument to the proper type, like the similar PyString macros already
|
||||
did. (Suggestion by Marc-Andre Lemburg.)
|
||||
|
||||
- The fcntl extension module now exports the needed symbolic
|
||||
constants. (Formerly these were in FCNTL.py which was not available
|
||||
or correct for all platforms.)
|
||||
|
||||
- Guido's corollary of the Don Beaudry hack: it is now possible to do
|
||||
metaprogramming by using an instance as a base class. Not for the
|
||||
faint of heart; and undocumented as yet, but basically if a base class
|
||||
is an instance, its class will be instantiated to create the new
|
||||
class. Jim Fulton will love it -- it also works with instances of his
|
||||
"extension classes", since it is triggered by the presence of a
|
||||
__class__ attribute on the purported base class.
|
||||
|
||||
- Plugged the two-byte memory leak in the tokenizer when reading an
|
||||
interactive EOF.
|
||||
|
||||
- Added timezone support to the rfc822.py module; also added
|
||||
recognition of some non-standard date formats, by Lars Wirzenius.
|
||||
|
||||
- mhlib.py: various enhancements, including almost compatible parsing
|
||||
of message sequence specifiers without invoking a subprocess. Also
|
||||
added a createmessage() method by Lars Wirzenius.
|
||||
|
||||
- The StringIO.StringIO class now supports readline(nbytes). (Lars
|
||||
Wirzenius.)
|
||||
|
||||
- Dictionary objects have several new methods; clear() and copy() have
|
||||
the obvious semantics, while update(d) merges the contents of another
|
||||
dictionary d into this one, overriding existing keys. BTW, the
|
||||
dictionary implementation file is now called dictobject.c rather than
|
||||
the confusing mappingobject.c.
|
||||
|
||||
- UserDict.py supports the new dictionary methods as well.
|
||||
|
||||
- The intrinsic function dir() is much smarter; it looks in __dict__,
|
||||
__members__ and __methods__.
|
||||
|
||||
- The silly -s command line option and the corresponding
|
||||
PYTHONSUPPRESS environment variable and the Py_SuppressPrint global
|
||||
flag are gone.
|
||||
|
||||
- On Windows, -u not only sets the standard I/O streams to unbuffered
|
||||
status, but also sets them in binary mode.
|
||||
|
||||
- Some of the Py_Get* function, like Py_GetVersion() (but not yet
|
||||
Py_GetPath()) are now declared as returning a const char *. (More
|
||||
should follow.)
|
||||
|
||||
- Speedup by inlining some common opcodes for common operand types
|
||||
(e.g. i+i, i-i, and list[i]). Fredrik Lundh.
|
||||
|
||||
- The extension modules dbm, gdbm and bsddb now check that the
|
||||
database is still open before making any new calls.
|
||||
|
||||
- Various small fixes to the nntplib.py module that I can't bother to
|
||||
document in detail.
|
||||
|
||||
- There is a cache for results in urlparse.urlparse(); its size limit
|
||||
is set to 20 (not 2000 as it was in earlier alphas).
|
||||
|
||||
- Small speedup by reordering the method tables of some common
|
||||
objects (e.g. list.append is now first).
|
||||
|
||||
- The modules base64.py, uu.py and quopri.py can now be used as simple
|
||||
command line utilities.
|
||||
|
||||
- The binascii extension module is now hopefully fully debugged. (XXX
|
||||
Oops -- Fredril Lundh promised me a fix that I never received.)
|
||||
|
||||
- The mimetools.py module now uses the available Python modules for
|
||||
decoding quoted-printable, uuencode and base64 formats, rather than
|
||||
creating a subprocess.
|
||||
|
||||
- The python debugger (pdb.py, and its base class bdb.py) now support
|
||||
conditional breakpoints. See the docs.
|
||||
|
||||
- The configure script now detects whether malloc(0) returns a NULL
|
||||
pointer or a valid block (of length zero). This avoids the nonsense
|
||||
of always adding one byte to all malloc() arguments on most platforms.
|
||||
|
||||
- Improvements for whrandom.py by Tim Peters: use 32-bit arithmetic to
|
||||
speed it up, and replace 0 seed values by 1 to avoid degeneration.
|
||||
|
||||
- Fix a bug where multiple anonymous tuple arguments would be mixed up
|
||||
when using the debugger or profiler (reported by Just van Rossum).
|
||||
The simplest example is ``def f((a,b),(c,d)): print a,b,c,d''; this
|
||||
would print the wrong value when run under the debugger or profiler.
|
||||
|
||||
- Module ftplib.py: added support for parsing a .netrc file. Fred
|
||||
Drake.
|
||||
|
||||
- urllib.py: the ftp cache is now limited to 10 entries. Added
|
||||
quote_plus() method which is like qupte() but also replaces spaces
|
||||
with '+', for encoding CGI form arguments. Catch all errors from the
|
||||
ftp module. HTTP requests now add the Host: header line. The proxy
|
||||
variable names are now mapped to lower case, for Windows.
|
||||
|
||||
- The posix module (and hence os.py!) now has doc strings! Thanks to
|
||||
Neil Schemenauer.
|
||||
|
||||
- shelve.py: use cPickle and cStringIO when available.
|
||||
|
||||
- Various modules now export their type object: socket.SocketType,
|
||||
array.ArrayType.
|
||||
|
||||
- ntpath.py supports ~ to $HOME expansion in expanduser().
|
||||
|
||||
- The pthread support now works on most platforms.
|
||||
|
||||
- New variable sys.executable points to the executable file for the
|
||||
Python interpreter, if known.
|
||||
|
||||
- On Windows, sys.prefix and sys.exec_prefix point to the directory
|
||||
where Python is installed, or to the top of the source tree, if it was
|
||||
run from there.
|
||||
|
||||
- The sort() methods for lists no longer uses the C library qsort(); I
|
||||
wrote my own quicksort implementation, with help from Tim Peters.
|
||||
This solves a bug in dictionary comparisons on some Solaris versions
|
||||
when Python is built with threads, and makes sorting lists even
|
||||
faster.
|
||||
|
||||
- STDWIN is now officially obsolete. Support for it will eventually
|
||||
be removed from the distribution.
|
||||
|
||||
- The configure script is smarter about C compiler options; e.g. with
|
||||
gcc it uses -O2 and -g when possible, and on some other platforms it
|
||||
uses -Olimit 1500 to avoid a warning from the optimizer about the main
|
||||
loop in ceval.c (which has more than 1000 basic blocks).
|
||||
|
||||
- Changed the run-time library to check for exceptions after object
|
||||
comparisons. PyObject_Compare() can now return an exception; use
|
||||
PyErr_Occurred() to check (there is *no* special return value).
|
||||
|
||||
- PyFile_WriteString() and Py_Flushline() now return error indicators
|
||||
instead of clearing exceptions. This fixes an obscure bug where using
|
||||
these would clear a pending exception, discovered by Just van Rossum.
|
||||
|
||||
- Most problems on 64-bit platforms should now be fixed. Andrew
|
||||
Kuchling helped. Some uncommon extension modules are still not
|
||||
clean (image and audio ops?).
|
||||
|
||||
Loading…
Reference in New Issue