A IronPython 2.6 version of the ASP.NET integration will be out shortly, I have 
to get time to make a build and get it sent over to the ASP.NET team. I'm 
working through some other things I need to get done first, but assume two 
weeks.

From: users-boun...@lists.ironpython.com 
[mailto:users-boun...@lists.ironpython.com] On Behalf Of Adam Brand
Sent: Saturday, March 28, 2009 1:37 PM
To: 'Discussion of IronPython'
Subject: Re: [IronPython] Announcing IronPython 2.6 Alpha 1

Any update on the timeline for getting IronPython for ASP.Net updated? This 
would make a world of difference for our IronPython-based web app.

Adam

Adam Brand
SilverKey Technologies

From: users-boun...@lists.ironpython.com 
[mailto:users-boun...@lists.ironpython.com] On Behalf Of Dody Gunawinata
Sent: Saturday, March 28, 2009 1:09 PM
To: Discussion of IronPython
Subject: Re: [IronPython] Announcing IronPython 2.6 Alpha 1

This is awesome. Web application can benefit from this "adaptive compilation" 
approach a lot - especially for low trafficked sites.
On Thu, Mar 26, 2009 at 11:08 PM, Giles Thomas 
<giles.tho...@resolversystems.com<mailto:giles.tho...@resolversystems.com>> 
wrote:
Dave,

This is great news, congratulations to the IP team on this release! We'll do a 
test-port of Resolver One early next week and will reply to the list with any 
issues we find.


Cheers,

Giles


Dave Fugate wrote:
Hello Python Community,

We're pleased to announce the release of IronPython 2.6 Alpha 1. As you might 
imagine, this release is all about supporting new CPython 2.6 features such as 
the 'bytes' and 'bytearray' types (PEP 3112), decorators for classes (PEP 
3129), advanced string formatting (PEP 3101), etc. The minimum .NET version 
required for this release is the same as IronPython 2.0; namely .NET 2.0 
Service Pack 1. Unlike the 2.0 series of IronPython, we plan to release only a 
couple Alphas and Betas of IronPython 2.6. As such, it's key that we get your 
feedback on the release(s) quickly to incorporate requested changes.

Besides CPython 2.6 features, another significant change in this release is 
that ipy.exe now uses "adaptive compilation" by default. Adaptive compilation 
is a technique in which IronPython:

1. Interprets and executes Python method calls up to /N/ times for a given 
method. If you're only going to execute a method a few times, it's typically 
faster to interpret the method instead of compiling and executing it

2. Compiles and executes the Python method call on the /N+1/ invocation of the 
method. Compilation of a Python method is a heavyweight operation, but we can 
reuse the result for subsequent invocations

3. Reuses the previously compiled method for new calls to the Python method. 
This operation is much faster than interpreting the method call as the method 
was already compiled in the previous step

The reason for this change is that it provides a nice performance gain for 
Python code containing lots of functions/methods that only get called a few 
times. All this said, this feature is still undergoing active development and 
as a consequence some Python scripts may actually run slower with it turned on. 
For this reason, our old default mode of running Python scripts is still 
available by passing the -O or -D flags to ipy.exe. Any feedback on how this 
new feature affects your IronPython applications performance-wise would be 
greatly appreciated.

There's also a few minor changes since IronPython 2.0.1 that are worth calling 
out here:

* IronPython.msi now installs NGEN'ed binaries by default

* IronPython.msi now offers a little more selection with respect to what you'd 
like to install. For example, Silverlight templates are optional

* The default installation location of IronPython.msi no longer indicates 
whether the 2.6 release is an Alpha, Beta, or a patched release. Future 
IronPython 2.6 installations will replace previous 2.6 releases which will be 
uninstalled automatically

* The -X:PreferComInteropAssembly flag has been removed. All COM interop is now 
done through normal COM dispatch

You can download IronPython 2.6 Alpha 1 at: 
http://ironpython.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=22982

The IronPython Team
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