[Python-checkins] r53515 - python/branches/release25-maint/Doc/whatsnew/whatsnew25.tex

Mon Jan 22 16:14:16 CET 2007

Author: andrew.kuchling
Date: Mon Jan 22 16:14:15 2007
New Revision: 53515
Modified:
 python/branches/release25-maint/Doc/whatsnew/whatsnew25.tex
Log:
Update version of What's New
Modified: python/branches/release25-maint/Doc/whatsnew/whatsnew25.tex
==============================================================================

--- python/branches/release25-maint/Doc/whatsnew/whatsnew25.tex	(original)
+++ python/branches/release25-maint/Doc/whatsnew/whatsnew25.tex	Mon Jan 22 16:14:15 2007
@@ -5,7 +5,7 @@
 % Fix XXX comments
 
 \title{What's New in Python 2.5}
-\release{1.0}
+\release{1.01}
 \author{A.M. Kuchling}
 \authoraddress{\email{amk at amk.ca}}
 
@@ -409,7 +409,7 @@
 specific exceptions. You couldn't combine both \keyword{except} blocks and a
 \keyword{finally} block, because generating the right bytecode for the
 combined version was complicated and it wasn't clear what the
-semantics of the combined should be. 
+semantics of the combined statement should be. 
 
 Guido van~Rossum spent some time working with Java, which does support the
 equivalent of combining \keyword{except} blocks and a
@@ -556,13 +556,14 @@
 where the generator's execution is paused.
 
 \item \method{close()} raises a new \exception{GeneratorExit}
- exception inside the generator to terminate the iteration. 
- On receiving this
- exception, the generator's code must either raise
- \exception{GeneratorExit} or \exception{StopIteration}; catching the 
- exception and doing anything else is illegal and will trigger
- a \exception{RuntimeError}. \method{close()} will also be called by 
- Python's garbage collector when the generator is garbage-collected.
+ exception inside the generator to terminate the iteration. On
+ receiving this exception, the generator's code must either raise
+ \exception{GeneratorExit} or \exception{StopIteration}. Catching
+ the \exception{GeneratorExit} exception and returning a value is
+ illegal and will trigger a \exception{RuntimeError}; if the function
+ raises some other exception, that exception is propagated to the
+ caller. \method{close()} will also be called by Python's garbage
+ collector when the generator is garbage-collected.
 
 If you need to run cleanup code when a \exception{GeneratorExit} occurs,
 I suggest using a \code{try: ... finally:} suite instead of 
@@ -1663,6 +1664,13 @@
 \item The \module{pyexpat} module now uses version 2.0 of the Expat parser.
 (Contributed by Trent Mick.)
 
+\item The \class{Queue} class provided by the \module{Queue} module
+gained two new methods. \method{join()} blocks until all items in
+the queue have been retrieved and all processing work on the items 
+have been completed. Worker threads call the other new method, 
+\method{task_done()}, to signal that processing for an item has been
+completed. (Contributed by Raymond Hettinger.)
+
 \item The old \module{regex} and \module{regsub} modules, which have been 
 deprecated ever since Python 2.0, have finally been deleted. 
 Other deleted modules: \module{statcache}, \module{tzparse},
@@ -2116,14 +2124,16 @@
 SQLite embedded database, has been added to the standard library under
 the package name \module{sqlite3}. 
 
-SQLite is a C library that provides a SQL-language database that
-stores data in disk files without requiring a separate server process.
+SQLite is a C library that provides a lightweight disk-based database
+that doesn't require a separate server process and allows accessing
+the database using a nonstandard variant of the SQL query language.
+Some applications can use SQLite for internal data storage. It's also
+possible to prototype an application using SQLite and then port the
+code to a larger database such as PostgreSQL or Oracle.
+ 
 pysqlite was written by Gerhard H\"aring and provides a SQL interface
 compliant with the DB-API 2.0 specification described by
-\pep{249}. This means that it should be possible to write the first
-version of your applications using SQLite for data storage. If
-switching to a larger database such as PostgreSQL or Oracle is
-later necessary, the switch should be relatively easy.
+\pep{249}. 
 
 If you're compiling the Python source yourself, note that the source
 tree doesn't include the SQLite code, only the wrapper module.
@@ -2150,8 +2160,8 @@
 
 # Create table
 c.execute('''create table stocks
-(date timestamp, trans varchar, symbol varchar,
- qty decimal, price decimal)''')
+(date text, trans text, symbol text,
+ qty real, price real)''')
 
 # Insert a row of data
 c.execute("""insert into stocks
