current progress on 2.0 NEWS
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Jeremy Hylton
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Misc/NEWS
84
Misc/NEWS
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@ -227,6 +227,25 @@ does the same work as this common idiom:
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dict[key] = []
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dict[key].append(item)
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New exceptions, TabError and IndentationError, thate are subclasses on
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SyntaxError. XXX
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The limits on the size of expressions and file in Python source code
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have been raised from 2**16 to 2**32. Previous versions of Python
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were limited because the maximum argument size the Python VM accepted
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was 2**16. This limited the size of object constructor expressions,
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e.g. [1,2,3] or {'a':1, 'b':2}, and the size of source files. This
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limit was raised thanks to a patch by Charles Waldman that effectively
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fixes the problem. It is now much more likely that you will be
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limited by available memory than by an arbitrary limit in Python.
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The interpreter's maximum recursion depth can be modified by Python
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programs using sys.getrecursionlimit and sys.setrecursionlimit. This
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limit is the maximum number of recursive calls that can be made by
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Python code. The limit exists to prevent infinite recursion from
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overflowing the C stack and causing a core dump. The default value is
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1000. The maximum safe value for a particular platform can be found
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by running Misc/find_recursionlimit.py.
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New Modules and Packages
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------------------------
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@ -252,15 +271,52 @@ webbrowser - a platform-independent API to launch a web browser.
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Changed Modules
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---------------
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ftplib - ntransfercmd(), transfercmd(), and retrbinary() all now
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calendar -- Many new functions that support features including control
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over which day of the week is the first day, returning strings instead
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of printing them. Also new symbolic constants for days of week,
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e.g. MONDAY, ..., SUNDAY.
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cgi -- FieldStorage objects have a getvalue method that works like a
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dictionary's get method and returns the value attribute of the object.
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ConfigParser -- The parser object has new methods has_option,
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remove_section, remove_option, set, and write. They allow the module
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to be used for writing config files as well as reading them.
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ftplib -- ntransfercmd(), transfercmd(), and retrbinary() all now
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optionally support the RFC 959 REST command.
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socket - new function getfqdn()
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gzip -- readline and readlines now accept optional size arguments
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readline - new functions to read, write and truncate history files. The
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readline section of the library reference manual contains an example.
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httplib -- New interfaces and support for HTTP/1.1 by Greg Stein. See
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the module doc strings for details.
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XXX: I'm sure there are others
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os/popen2 -- popen2/popen3/popen4 support under Windows. popen2/popen3
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support under Unix.
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os/pty -- support for openpty and forkpty by Thomas Wouters.
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os.path -- fix semantics of os.path.commonprefix
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smtplib -- support for sending very long messages
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socket -- new function getfqdn()
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readline -- new functions to read, write and truncate history files.
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The readline section of the library reference manual contains an
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example.
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shutil -- new copyfileobj function
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SimpleHTTPServer, CGIHTTPServer -- Fix problems with buffering in the
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HTTP server.
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Tkinter -- flatten optimization by Fredrik Lundh
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urllib -- scans environment variables for proxy configuration,
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e.g. http_proxy.
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whichdb -- recognizes dumbdbm format
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Obsolete Modules
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@ -294,6 +350,24 @@ they are all included by Python.h.)
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Trent Mick ensured portability to 64-bit platforms, under both Linux
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and Win64, especially for the new Intel Itanium processor.
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The C APIs to return an object's size have been update to consistently
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use the form PyXXX_Size, e.g. PySequence_Size and PyDict_Size. In
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previous versions, the abstract interfaces used PyXXX_Length and the
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concrete interfaces used PyXXX_Size. The old names,
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e.g. PyObject_Length, are still available for backwards compatibility
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at the API level, but are deprecated.
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PyOS_CheckStack - XXX
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The GC changes resulted in creation of two new slots on object,
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tp_traverse and tp_clear. The augmented assignment changes result in
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the createion of a new slot for each in-place operator.
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The GC API creates new requirements for container types implemented in
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C extesion modules. See Include/objimpl.h for details.
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PyString_Decode / PyString_Encode. ???
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Numerous new APIs were added, e.g.
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XXX: Fill this out.
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