On 16/07/2010 21:38, Dave Fugate wrote:
Hello Python Community,
Congratulations guys.
Michael
We're pleased to announce the Alpha release of IronPython 2.7 which
can be downloaded at
http://ironpython.codeplex.com/releases/view/42434. This is a major
new version of IronPython with a number of significant updates.
Because this is an Alpha release it is not yet feature complete nor
fully compatible with CPython 2.7. Changes thus far include:
· Updates the language to be compatible with CPython 2.7
· Adds integrated Visual Studio support (IronPython Tools for Visual
Studio)
· Extends CPython 2.7's documentation with useful information
pertaining to IronPython
· Adds the mmap and signal modules
· Includes a number of performance updates and bug fixes
· Switches the license to Apache License, Version 2.0
· Requires .NET 4.0 and Silverlight 4.0
Python 2.7 includes a number of features backported from the Python
3.0 series. This release implements the new builtin _io module,
includes dictionary and set comprehensions, set literals, supports
multiple context managers in the with statement, and adds several new
functions to the itertools methods, and auto indexing for the new
string formatting. There are also numerous updates to the standard
library such as ordered dictionaries and the new argparse module.
This release also includes a "IronPython Tools for Visual Studio"
option within the IronPython installer. This enables one install to
get both IronPython and IronPython Visual Studio support assuming you
have an existing installation of Visual Studio 2010. This version of
IronPython Tools includes a number of bug fixes as well as the start
of improved WPF designer support. We discovered very late that the
WPF designer support may crash VS when not running under the debugger.
If you'd like to try the WPF designer support and give us feedback,
just launch another Visual Studio instance and attach to the instance
in which you are using the WPF designer support.
We've also updated the IronPython installer to include documentation
based upon the CPython documentation. This new .chm file includes
documentation on the Python language and standard library. It's been
extended from the normal Python documentation to include IronPython
specific topics such as the DLR hosting APIs and extending IronPython
from statically typed .NET languages.
We flushed out more support for missing built-in modules which CPython
includes. This release includes the mmap and signal modules bringing
better support for interoperating with unmanaged code.
As usual there are a number of bug fixes and performance
improvements. This release includes major performance improvements in
cPickle, the sum built-in function, and includes support for fast
exceptions which do not use the .NET exception mechanism. There have
also been improvements to significantly reduce memory usage of the
IronPython ASTs. One of the end results of these numerous
improvements is that IronPython's startup time has decreased by 10%
when compared to IronPython 2.6.1.
Finally, with this release we have changed the license from the
Microsoft Public License to the Apache License, Version 2.0. We've
made this change based upon continual feedback and questions from the
community. The Apache License will be more familiar while remaining
an open source license.
- The IronPython Team
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