[Python-checkins] python/dist/src/Doc/whatsnew whatsnew24.tex, 1.13, 1.14

Wed Nov 26 12:52:48 EST 2003

Update of /cvsroot/python/python/dist/src/Doc/whatsnew
In directory sc8-pr-cvs1:/tmp/cvs-serv21903/whatsnew
Modified Files:
	whatsnew24.tex 
Log Message:
Nits from a review of the documentation update.
Index: whatsnew24.tex
===================================================================
RCS file: /cvsroot/python/python/dist/src/Doc/whatsnew/whatsnew24.tex,v
retrieving revision 1.13
retrieving revision 1.14
diff -C2 -d -r1.13 -r1.14
*** whatsnew24.tex	24 Nov 2003 07:14:54 -0000	1.13
--- whatsnew24.tex	26 Nov 2003 17:52:45 -0000	1.14
***************
*** 13,17 ****

 This article explains the new features in Python 2.4. No release date
! for Python 2.4 has been set; expect that this will happen in 2004.

 While Python 2.3 was primarily a library development release, Python
--- 13,17 ----

 This article explains the new features in Python 2.4. No release date
! for Python 2.4 has been set; expect that this will happen mid-2004.

 While Python 2.3 was primarily a library development release, Python
***************
*** 43,46 ****
--- 43,47 ----
 >>> ''.join(a) # convert back into a string
 'arbcd'
+ 
 >>> b = set('alacazam') # form a second set
 >>> a - b # letters in a but not in b
***************
*** 52,55 ****
--- 53,57 ----
 >>> a ^ b # letters in a or b but not both
 set(['r', 'd', 'b', 'm', 'z', 'l'])
+ 
 >>> a.add('z') # add a new element
 >>> a.update('wxy') # add multiple new elements
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*** 116,119 ****
--- 118,126 ----

 \begin{itemize}
+ 
+ \item The string methods, \method{ljust()}, \method{rjust()}, and
+ \method{center()} now take a optional argument for specifying a
+ fill character other than a space.
+ 
 \item The \method{sort()} method of lists gained three keyword
 arguments, \var{cmp}, \var{key}, and \var{reverse}. These arguments
***************
*** 186,193 ****
 >>> L = [9,7,8,3,2,4,1,6,5] # original is left unchanged
 [9,7,8,3,2,4,1,6,5] 
 >>> list.sorted('Monte Python') # any iterable may be an input
 [' ', 'M', 'P', 'e', 'h', 'n', 'n', 'o', 'o', 't', 't', 'y']
 >>> colormap = dict(red=1, blue=2, green=3, black=4, yellow=5)
- >>> # Lists the contents of the dict sorted by key values
 >>> for k, v in list.sorted(colormap.iteritems()):
 ... print k, v
--- 193,202 ----
 >>> L = [9,7,8,3,2,4,1,6,5] # original is left unchanged
 [9,7,8,3,2,4,1,6,5] 
+ 
 >>> list.sorted('Monte Python') # any iterable may be an input
 [' ', 'M', 'P', 'e', 'h', 'n', 'n', 'o', 'o', 't', 't', 'y']
+ 
+ >>> # List the contents of a dict sorted by key values
 >>> colormap = dict(red=1, blue=2, green=3, black=4, yellow=5)
 >>> for k, v in list.sorted(colormap.iteritems()):
 ... print k, v
***************
*** 203,207 ****

 \item The \function{zip()} built-in function and \function{itertools.izip()}
! now return an empty list instead of raising a \exception{TypeError}
 exception if called with no arguments. This makes the functions more
 suitable for use with variable length argument lists:
--- 212,216 ----

 \item The \function{zip()} built-in function and \function{itertools.izip()}
! now returns an empty list instead of raising a \exception{TypeError}
 exception if called with no arguments. This makes the functions more
 suitable for use with variable length argument lists:
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*** 297,300 ****
--- 306,315 ----
 objN)}, constructs tuples from a variable length argument list of
 Python objects.
+ 
+ \item A new function, \function{PyDict_Contains(d, k)}, implements
+ fast dictionary lookups without masking exceptions raised during
+ the loop-up process (compare with \function{PySequence_Contains()}
+ which is slower or \function{PyMapping_HasKey()} which clears all
+ exceptions).

 \end{itemize}