tummy.com, ltd.

Python has moved to sourceforge.
Unicode support
   u'string'
   \u0000
   encode([encoding]) method (returns an 8-bit string in the desired encoding)
   sys.setdefaultencoding([encoding])
   Combining 8-bit and unicode coerces to unicode.
   unicodedata module.
   codecs module to look up and register new encodings.
List Comprehensions:
   This:
      sublist = filter( lambda s, substring=S: 
           string.find(s, substring) != -1, L)
   becomes:
      sublist = [ s for s in L if string.find(s, S) != -1 ]
   List comprehensions have the form: 
        [ expression for expr in sequence1 
            for expr2 in sequence2 ...
            for exprN in sequenceN
            if condition
            ]
   Effectively:
      for expr1 in sequence1:
         for expr2 in sequence2:
            ...
            for exprN in sequenceN:
               if (condition):
                  # Append the value of 
                  # the expression to the 
                  # resulting list.
   Example:
      seq1 = 'abc'
      seq2 = (1,2,3)
      >>> [ (x,y) for x in seq1 for y in seq2]
      [('a', 1), ('a', 2), ('a', 3), ('b', 1), ('b', 2), ('b', 3), ('c', 1),
      ('c', 2), ('c', 3)]
Augmented assignment:
   +=, -=, *=, /=, %=, **=, &=, |=, ^=, >>=, and <<=
   Override with __iadd__, __isub__, etc.
Strings have grown methods.
   Example:
      >>> 'andrew'.capitalize()
      'Andrew'
      >>> 'hostname'.replace('os', 'linux')
      'hlinuxtname'
      >>> 'moshe'.find('sh')
      2
   New methods: startswith() and endswith()
Cycle-detection in the GC:
   Periodicly the GC will run a cycle-detection pass to look for any
      inaccessable cycles and deletes them.
   The "gc" module provides methods for tuning the GC, forcing a GC, and
      getting stats.
   Can be disabled with "--without-cycle-gc" at compile time.
f(*args, **kw) is shorthand for apply(f, args, kw)
print >> sys.stderr, "Warning: action field not supplied"
import string as st
"'%r' % s" is equivalent to "repr(s)"
__contains__() method to override "in".
Recursive deletion of objects no longer used.
Recursive definitions no longer crash.
Comparisons can now raise exceptions.  They used to be swallowed.
New platforms: 64-bit windows, OS X, WinCE.
NameError for unknown symbols is now UnboundLocalError
SyntaxError now has two new children: TabError and IndentationError
New method: zip(seq1, seq2, ...)
   Unlike map(None, seq1, seq2), zip() truncates to the length of the shortest.
int() and long() now accept a base argument.
dict.setdefault(key, default) method
   similar to dict.get(key, default); dict[key] = default
Recursion depth can be changed at run-time using sys.setrecursionlimit
   sys.getrecursionlimit retrieves it

Backwards incomatibility:
   l.append(1,2) and l.insert(1,2) must now be l.append(( 1,2 ))
   socket.connect still allows (1,2) because of bugs in the docs.
      This will change.
   '\xFF' now consumes exactly two digits.
   Long ints more interchangable: can be used in slices, seek(), '%d'.
   str(1L) no longer has trailing L.
   repr() of a float now uses '%.17g' while str() continues to use '%.12g'
   -X option for string exceptions has been removed.

Many extending/embedding changes.

Distutils:
   "python setup.py install"
   Will detect paths, compilers, flags to use, build any modules, and install
      them in the right place.

XML:
   xmllib module
   SAX2 -- provides an event-driven interface with some similarities to xmllib
   DOM -- provides a tree-based interface, transforming an XML document into
         a tree of nodes that can be traversed and modified.  Minimal impl.
   PyXML support can be gotten by simply installing PyXML.  Simple programs
      can get by with existing "xml" module, more complicated programs will
      need PyXML.
   PyXML includes:
      4DOM, a full DOM implementation from FourThought, Inc. 
      The xmlproc validating parser, written by Lars Marius Garshol. 
      The sgmlop parser accelerator module, written by Fredrik Lundh. 

Module changes:
   SSL Support in the socket module.
      httplib and urllib now support https://
      >>> s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
      >>> s.connect(( '216.17.150.34', 443 ))
      >>> s2 = socket.ssl(s2, None, None)
      >>> print s2.issuer()
      /C=ZA/ST=Western Cape/L=Cape Town/O=Thawte Consulting cc/OU=Certification Services Division/CN=Thawte Server CA/Email=server-certs@thawte.com
      >>> print s2.server()
      /C=US/ST=Colorado/L=Fort Collins/O=tummy.com, ltd./CN=www.tummy.com
   Tkinter now supports Tk8.3
   curses module greatly extended.
   re module re-written, includes support for unicode.
   atexit.register() should be used instead of sys.exitfunc
   filecmp module deprecates cmp, cmpcache, dircache
   gettext internationalization
   linuxaudiodev
   mmap
   pyexpat -- interface to expat XML parser.
   robotparser
   tabnanny
   UserString
   webbrowser -- platform-independant web browser launching.
   _winreg -- Windows registry.
   zipfile
   imputil -- Customized import hooks.

Many IDLE changes

Deprecated modules:
   gone: stdwin
   Moved: cmp, cmpcache, dircmp, dump, find, grep, packmail, poly, util,
      whatsound, zmod