mirror of https://github.com/python/cpython
Completed the changes between 1.5a3 and now. Not yet sorted though.
This commit is contained in:
Guido van Rossum
parent
6f2a26d42b
commit
92664b890b
282
Misc/NEWS
282
Misc/NEWS
|
|
@ -3,8 +3,7 @@ What's new in this release?
|
|||
|
||||
Below is a list of all relevant changes since the release 1.4, up till
|
||||
the release of 1.5a3. At the end is a list of changes made since
|
||||
1.5a3 that will be in 1.5a4; this list is not yet complete and will be
|
||||
merged with the main list later.
|
||||
1.5a3 up to the release of 1.5a4.
|
||||
|
||||
A note on attributions: while I have sprinkled some names throughout
|
||||
here, I'm grateful to many more people who remain anonymous. You may
|
||||
|
|
@ -343,9 +342,10 @@ on platforms where this is not the native format. It uses uppercase
|
|||
format codes for unsigned integers of various sizes (always using
|
||||
Python long ints for 'I' and 'L'), 's' with a size prefix for strings,
|
||||
and 'p' for "Pascal strings" (with a leading length byte, included in
|
||||
the size; blame Hannu Krosing). A prefix '>' forces big-endian data
|
||||
and '<' forces little-endian data; these also select standard data
|
||||
sizes and disable automatic alignment (use pad bytes as needed).
|
||||
the size; blame Hannu Krosing; new in 1.5a4). A prefix '>' forces
|
||||
big-endian data and '<' forces little-endian data; these also select
|
||||
standard data sizes and disable automatic alignment (use pad bytes as
|
||||
needed).
|
||||
|
||||
- The array module supports uppercase format codes for unsigned data
|
||||
formats (like the struct module).
|
||||
|
|
@ -971,12 +971,16 @@ make a separate announcement for the Mac specific source code and the
|
|||
binary distribution(s) when these are ready.
|
||||
|
||||
|
||||
======================================================================
|
||||
|
||||
|
||||
Fixed after 1.5a3 was released
|
||||
------------------------------
|
||||
|
||||
The following changes have been made to the source base after the
|
||||
release of 1.5a3. These need to be merged into their respective
|
||||
categories for the next release.
|
||||
release of 1.5a3. They still need to be sorted. They also need to be
|
||||
merged into their respective categories for the final release, but
|
||||
it's useful to have them separately during the alpha test cycle.
|
||||
|
||||
- faqwiz.py: version 0.8; Recognize https:// as URL; <html>...</html>
|
||||
feature; better install instructions; removed faqmain.py (which was an
|
||||
|
|
@ -991,6 +995,15 @@ function.
|
|||
- urllib.py: close the socket and temp file in URLopener.retrieve() so
|
||||
that multiple retrievals using the same connection work.
|
||||
|
||||
- All standard exceptions are now classes by default; use -X to make
|
||||
them strings (for backward compatibility only).
|
||||
|
||||
- There's a new standard exception hierarchy, defined in the standard
|
||||
library module exceptions.py (which you never need to import
|
||||
explicitly). See
|
||||
http://grail.cnri.reston.va.us/python/essays/stdexceptions.html for
|
||||
more info.
|
||||
|
||||
- Three new C API functions:
|
||||
|
||||
- int PyErr_GivenExceptionMatches(obj1, obj2)
|
||||
|
|
@ -1017,8 +1030,9 @@ that multiple retrievals using the same connection work.
|
|||
argument. If value is None, it uses an empty arg tuple, and if
|
||||
the value is a tuple, it uses just that.
|
||||
|
||||
- Demo/metaclasses: new demo subdir explains metaclasses (read
|
||||
index.html in a browser).
|
||||
- Another new C API function: PyErr_NewException() creates a new
|
||||
exception class derived from Exception; when -X is given, it creates a
|
||||
new string exception.
|
||||
|
||||
- core interpreter: remove the distinction between tuple and list
|
||||
unpacking; allow an arbitrary sequence on the right hand side of any
|
||||
|
|
@ -1153,3 +1167,253 @@ if it doesn't. The default defaults to None. This is quicker for
|
|||
some applications than using either has_key() or try:...except
|
||||
KeyError:....
|
||||
|
||||
- Tools/webchecker/: some small changes to webchecker.py; added
|
||||
websucker.py (a simple web site mirroring script).
|
||||
|
||||
- Dictionary objects now have a get() method (also in UserDict.py).
|
||||
dict.get(key, default) returns dict[key] if it exists and default
|
||||
otherwise; default defaults to None.
|
||||
|
||||
- Tools/scripts/logmerge.py: print the author, too.
|
||||
|
||||
- Changes to import: support for "import a.b.c" is now built in. See
|
||||
http://grail.cnri.reston.va.us/python/essays/packages.html
|
||||
for more info. Most important deviations from "ni.py": __init__.py is
|
||||
executed in the package's namespace instead of as a submodule; and
|
||||
there's no support for "__" or "__domain__". Note that "ni.py" is not
|
||||
changed to match this -- it is simply declared obsolete (while at the
|
||||
same time, it is documented...:-( ).
|
||||
Unfortunately, "ihooks.py" has not been upgraded (but see "knee.py"
|
||||
for an example implementation of hierarchical module import written in
|
||||
Python).
|
||||
|
||||
- More changes to import: the site.py module is now imported by
|
||||
default when Python is initialized; use -S to disable it. The site.py
|
||||
module extends the path with several more directories: site-packages
|
||||
inside the lib/python1.5/ directory, site-python in the lib/
|
||||
directory, and pathnames mentioned in *.pth files found in either of
|
||||
those directories. See
|
||||
http://grail.cnri.reston.va.us/python/essays/packages.html
|
||||
for more info.
|
||||
|
||||
- Changes to standard library subdirectory names: those subdirectories
|
||||
that are not packages have been renamed with a hypen in their name,
|
||||
e.g. lib-tk, lib-stdwin, plat-win, plat-linux2, plat-sunos5, dos-8x3.
|
||||
The test suite is now a package -- to run a test, you must now use
|
||||
"import test.test_foo".
|
||||
|
||||
- A completely new re.py module is provided (thanks to Andrew
|
||||
Kuchling) which uses Philip Hazel's "pcre" re compiler and engine.
|
||||
For a while, the "old" re.py (which was new in 1.5a3!) will be kept
|
||||
around as re1.py. The "old" regex module and underlying parser and
|
||||
engine are still present -- while regex is now officially obsolete, it
|
||||
will probably take several major release cycles before it can be
|
||||
removed.
|
||||
|
||||
- The posix module now has a strerror() function which translates an
|
||||
error code to a string.
|
||||
|
||||
- The emacs.py module (which was long obsolete) has been removed.
|
||||
|
||||
- The universal makefile Misc/Makefile.pre.in now features an
|
||||
"install" target. By default, installed shared libraries go into
|
||||
$exec_prefix/lib/python$VERSION/site-packages/.
|
||||
|
||||
- The install-sh script is installed with the other configuration
|
||||
specific files (in the config/ subdirectory).
|
||||
|
||||
- It turns out whatsound.py and sndhdr.py were identical modules.
|
||||
Since there's also an imghdr.py file, I propose to make sndhdr.py the
|
||||
official one. For compatibility, whatsound.py imports * from
|
||||
sndhdr.py.
|
||||
|
||||
- Class objects have a new attribute, __module__, giving the name of
|
||||
the module in which they were declared. This is useful for pickle and
|
||||
for printing the full name of a class exception.
|
||||
|
||||
- Many extension modules no longer issue a fatal error when their
|
||||
initialization fails; the importing code now checks whether an error
|
||||
occurred during module initialization, and correctly propagates the
|
||||
exception to the import statement.
|
||||
|
||||
- Most extension modules now raise class-based exceptions (except when
|
||||
-X is used).
|
||||
|
||||
- Subtle changes to PyEval_{Save,Restore}Thread(): always swap the
|
||||
thread state -- just don't manipulate the lock if it isn't there.
|
||||
|
||||
- Fixed a bug in Python/getopt.c that made it do the wrong thing when
|
||||
an option was a single '-'. Thanks to Andrew Kuchling.
|
||||
|
||||
- New module mimetypes.py will guess a MIME type from a filename's
|
||||
extension.
|
||||
|
||||
- Windows: the DLL version is now settable via a resource rather than
|
||||
being hardcoded. This can be used for "branding" a binary Python
|
||||
distribution.
|
||||
|
||||
- urllib.py is now threadsafe -- it now uses re instead of regex, and
|
||||
sys.exc_info() instead of sys.exc_{type,value}.
|
||||
|
||||
- Many other library modules that used to use
|
||||
sys.exc_{type,value,traceback} are now more thread-safe by virtue of
|
||||
using sys.exc_info().
|
||||
|
||||
- The functions in popen2 have an optional buffer size parameter.
|
||||
Also, the command argument can now be either a string (passed to the
|
||||
shell) or a list of arguments (passed directly to execv).
|
||||
|
||||
- The thread support for _tkinter.c now works. The bad news is that
|
||||
it requires a modified version of a file in the standard Tcl
|
||||
distribution, which you must compile with a -I option pointing to the
|
||||
standard Tcl source tree. For this reason, the thread support is
|
||||
disabled by default.
|
||||
|
||||
- The errno extension module adds two tables: errorcode maps errno
|
||||
numbers to errno names (e.g. EINTR), and errorcode maps them to
|
||||
message strings. (The latter is redundant because the new call
|
||||
posix.strerror() now does the same, but alla...) (Marc-Andre Lemburg)
|
||||
|
||||
- The readline extension module now provides some interfaces to
|
||||
internal readline routines that make it possible to write a completer
|
||||
in Python. An example completer, rlcompleter.py, is provided.
|
||||
|
||||
When completing a simple identifier, it completes keywords,
|
||||
built-ins and globals in __main__; when completing
|
||||
NAME.NAME..., it evaluates (!) the expression up to the last
|
||||
dot and completes its attributes.
|
||||
|
||||
It's very cool to do "import string" type "string.", hit the
|
||||
completion key (twice), and see the list of names defined by
|
||||
the string module!
|
||||
|
||||
Tip: to use the tab key as the completion key, call
|
||||
|
||||
readline.parse_and_bind("tab: complete")
|
||||
|
||||
- The traceback.py module has a new function tb_lineno() by Marc-Andre
|
||||
Lemburg which extracts the line number from the linenumber table in
|
||||
the code object. Apparently the traceback object doesn't contains the
|
||||
right linenumber when -O is used. Rather than guessing whether -O is
|
||||
on or off, the module itself uses tb_lineno() unconditionally.
|
||||
|
||||
- Fixed Demo/tkinter/matt/canvas-moving-or-creating.py: change bind()
|
||||
to tag_bind() so it works again.
|
||||
|
||||
- The pystone script is now a standard library module. Example use:
|
||||
"import test.pystone; test.pystone.main()".
|
||||
|
||||
- The import of the readline module in interactive mode is now also
|
||||
attempted when -i is specified. (Yes, I know, giving in to Marc-Andre
|
||||
Lemburg, who asked for this. :-)
|
||||
|
||||
- rfc822.py: Entirely rewritten parseaddr() function by Sjoerd
|
||||
Mullender, to be closer to the standard. This fixes the getaddr()
|
||||
method. Unfortunately, getaddrlist() is as broken as ever, since it
|
||||
splits on commas without regard for RFC 822 quoting conventions.
|
||||
|
||||
- pprint.py: correctly emit trailing "," in singleton tuples.
|
||||
|
||||
- _tkinter.c: export names for its type objects, TkappType and
|
||||
TkttType.
|
||||
|
||||
- pickle.py: use __module__ when defined; fix a particularly hard to
|
||||
reproduce bug that confuses the memo when temporary objects are
|
||||
returned by custom pickling interfaces; and a semantic change: when
|
||||
unpickling the instance variables of an instance, use
|
||||
inst.__dict__.update(value) instead of a for loop with setattr() over
|
||||
the value.keys(). This is more consistent (the pickling doesn't use
|
||||
getattr() either but pickles inst.__dict__) and avoids problems with
|
||||
instances that have a __setattr__ hook. But it *is* a semantic change
|
||||
(because the setattr hook is no longer used). So beware!
|
||||
|
||||
- config.h is now installed (at last) in
|
||||
$exec_prefix/include/python1.5/. For most sites, this means that it
|
||||
is actually in $prefix/include/python1.5/, with all the other Python
|
||||
include files, since $prefix and $exec_prefix are the same by
|
||||
default.
|
||||
|
||||
- The imp module now supports parts of the functionality to implement
|
||||
import of hierarchical module names. It now supports find_module()
|
||||
and load_module() for all types of modules. Docstrings have been
|
||||
added for those functions in the built-in impo module that are still
|
||||
relevant (some old interfaces are obsolete). For a sample
|
||||
implementation of hierarchical module import in Python, see the new
|
||||
library module knee.py.
|
||||
|
||||
- The % operator on string objects now allows arbitrary nested parens
|
||||
in a %(...)X style format. (Brad Howes)
|
||||
|
||||
- Reverse the order in which Setup and Setup.local are passed to the
|
||||
makesetup script. This allows variable definitions in Setup.local to
|
||||
override definitions in Setup. (But you'll still have to edit Setup
|
||||
if you want to disable modules that are enabled by default, or if such
|
||||
modules need non-standard options.)
|
||||
|
||||
- Added PyImport_ImportModuleEx(name, globals, locals, fromlist); this
|
||||
is like PyImport_ImporModule(name) but receives the globals and locals
|
||||
dict and the fromlist arguments as well. (The name is a char*; the
|
||||
others are PyObject*s).
|
||||
|
||||
- The 'p' format in the struct extension module alloded to above is
|
||||
new in 1.5a4.
|
||||
|
||||
- The xlib extension module has been debugged and improved.
|
||||
|
||||
- The types.py module now uses try-except in a few places to make it
|
||||
more likely that it can be imported in restricted mode. Some type
|
||||
names are undefined in that case, e.g. CodeType (inaccessible),
|
||||
FileType (not always accessible), and TracebackType and FrameType
|
||||
(inaccessible).
|
||||
|
||||
- In urllib.py: added separate administration of temporary files
|
||||
created y URLopener.retrieve() so cleanup() can properly remove them.
|
||||
The old code removed everything in tempcache which was a bad idea if
|
||||
the user had passed a non-temp file into it. Also, in basejoin(),
|
||||
interpret relative paths starting in "../". This is necessary if the
|
||||
server uses symbolic links.
|
||||
|
||||
- The Windows build procedure and project files are now based on
|
||||
Microsoft Visual C++ 5.x. The build now takes place in the PCbuild
|
||||
directory. It is much more robust, and properly builds separate Debug
|
||||
and Release versions. (The installer will be added shortly.)
|
||||
|
||||
- Added casts and changed some return types in regexpr.c to avoid
|
||||
compiler warnings or errors on some platforms.
|
||||
|
||||
- The AIX build tools for shared libraries now supports VPATH. (Donn
|
||||
Cave)
|
||||
|
||||
- By default, disable the "portable" multimedia modules audioop,
|
||||
imageop, and rgbimg, since they don't work on 64-bit platforms.
|
||||
|
||||
- Fixed a nasty bug in cStringIO.c when code was actually using the
|
||||
close() method (the destructors would try to free certain fields a
|
||||
second time).
|
||||
|
||||
- For those who think they need it, there's a "user.py" module. This
|
||||
is *not* imported by default, but can be imported to run user-specific
|
||||
setup commands, ~/.pythonrc.py.
|
||||
|
||||
- Various speedups suggested by Fredrik Lundh, Marc-Andre Lemburg,
|
||||
Vladimir Marangozov, and others.
|
||||
|
||||
- Added os.altsep; this is '/' on DOS/Windows, and None on systems
|
||||
with a sane filename syntax.
|
||||
|
||||
- os.py: Write out the dynamic OS choice, to avoid exec statements.
|
||||
Adding support for a new OS is now a bit more work, but I bet that
|
||||
'dos' or 'nt' will cover most situations...
|
||||
|
||||
- The obsolete exception AccessError is now really gone.
|
||||
|
||||
- Tools/faqwiz/: New installation instructions show how to maintain
|
||||
multiple FAQs. Removed bootstrap script from end of faqwiz.py module.
|
||||
Added instructions to bootstrap script, too. Version bumped to 0.8.
|
||||
Added <html>...</html> feature suggested by Skip Montanaro. Added
|
||||
leading text for Roulette, default to 'Hit Reload ...'. Fix typo in
|
||||
default SRCDIR.
|
||||
|
||||
- Documentation for the relatively new modules "keyword" and "symbol"
|
||||
has been added (to the end of the section on the parser extension
|
||||
module).
|
||||
|
|
|
|||
Loading…
Reference in New Issue