Mirror
/
cpython
mirror of https://github.com/python/cpython
4
1
Fork 0
Code Issues Releases Wiki Activity

Add introductory paragraphs summarizing the release; minor edits

This commit is contained in:
Andrew M. Kuchling 2006-06-20 13:05:12 +00:00
parent 5ab504ef2f
commit b1992d0ec6
1 changed files with 33 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
Doc/whatsnew/whatsnew25.tex
View File

@ -15,18 +15,41 @@
\maketitle \maketitle
\tableofcontents \tableofcontents
This article explains the new features in Python 2.5. No release date This article explains the new features in Python 2.5. The final
for Python 2.5 has been set; it will probably be released in the release of Python 2.5 is scheduled for August 2006;
autumn of 2006. \pep{356} describes the planned release schedule. \pep{356} describes the planned release schedule.
Comments, suggestions, and error reports are welcome; please e-mail them Comments, suggestions, and error reports are welcome; please e-mail them
to the author or open a bug in the Python bug tracker. to the author or open a bug in the Python bug tracker.
% XXX Compare with previous release in 2 - 3 sentences here. % XXX Compare with previous release in 2 - 3 sentences here.
The changes in Python 2.5 are an interesting mix of language and library
changes. The library changes
will be more important to Python's user community, I think,
because several widely-useful packages were added to the standard library;
the additions include
ElementTree for XML processing (section~\ref{module-etree}),
the SQLite database module (section~\ref{module-sqlite}),
and the \module{ctypes} module for calling C functions (\section~\ref{module-ctypes}).
This article doesn't attempt to provide a complete specification of The language changes are of middling significance. Some pleasant new
the new features, but instead provides a convenient overview. For features were added, but most of them aren't features that you'll use
full details, you should refer to the documentation for Python 2.5. every day. Conditional expressions were finally added to the language
using a novel syntax; see section~\ref{pep-308}. The new
'\keyword{with}' statement will make writing cleanup code easier
(section~\ref{pep-343}). Values can now be passed into generators
(section~\ref{pep-342}). Imports are now visible as either absolute
or relative (section~\ref{pep-328}). Some corner cases of exception
handling are handled better (section~\ref{pep-341}). All these
improvements are worthwhile, but they're improvements to one specific
language feature or another; none of them are broad modifications to
Python's semantics.
This article doesn't attempt to be a complete specification of the new
features, but instead is a brief introduction to each new feature.
For full details, you should refer to the documentation for Python
2.5.
% XXX add hyperlink when the documentation becomes available online. % XXX add hyperlink when the documentation becomes available online.
If you want to understand the complete implementation and design If you want to understand the complete implementation and design
rationale, refer to the PEP for a particular new feature. rationale, refer to the PEP for a particular new feature.
@ -36,10 +59,10 @@ rationale, refer to the PEP for a particular new feature.
\section{PEP 308: Conditional Expressions\label{pep-308}} \section{PEP 308: Conditional Expressions\label{pep-308}}
For a long time, people have been requesting a way to write For a long time, people have been requesting a way to write
conditional expressions, expressions that return value A or value B conditional expressions, which are expressions that return value A or
depending on whether a Boolean value is true or false. A conditional value B depending on whether a Boolean value is true or false. A
expression lets you write a single assignment statement that has the conditional expression lets you write a single assignment statement
same effect as the following: that has the same effect as the following:
\begin{verbatim} \begin{verbatim}
if condition: if condition: