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Hello IronPython Community, We have just released IronPython 1.0 Beta 5. This release
focuses primarily on improving IronPython’s performance. In this area
we’ve reduced working set and startup type by optimizing methods
on-demand, improved the speed of attribute access, reduced the overhead in many
basic operations (e.g. equality checks and uninitialized checks for local
variables), and done other various fine tuning. As usual there are also a good
number of bug fixes (primarily focused on community reported bugs). There was
also one significant API change in the .NET <-> Python interoperability
area: If we have the following definitions: public class Foo { public void Bar(int arg) {} public void Bar<T>(int arg) {} } We can call the non-generic version with any of: foo.Bar(1) foo.Bar.__overloads__[int](1) And the generic one with any of: foo.Bar[str](1) foo.Bar.__overloads__[int][str](1) foo.Bar[str].__overloads__[int](1) This is different from previous versions of IronPython where
indexing was used to provide access to generic methods. A more complete list of changes follows at the end. You can download the release from:
http://www.microsoft.com/downloads/details.aspx?FamilyID=e4058d5f-49ec-47cb-899e-c4f781e6648f&displaylang=en We'd like to thank everyone in the community for your bug
reports and suggestions that helped make this a better release: Aaronm, Anthony
Tarlano, Eugene Rosenzweig, Shigeru Hemmi, JoeSox, John Platt, Klaus Müller,
Lewis Franklin, Pete Sheill, Rusty Deschenes, and Sanghyeon Seo. Thanks and keep in touch, The IronPython Team More complete list of changes and bug fixes: ============================================ ReflectOptimize methods on-demand ReflectOptimize hasattr/getattr/setattr and other context
aware methods Improve BigInteger parsing performance abs(True) and abs(False) fixed to match CPython behavior os(‘stat’) sets file modes properly now Bugfix: Setting variables in nt.environ doesn’t
propagate to environment Bugfix: Improve constructing files from streams ReflectOptimizer inlines type checks for non-convertible
types (ICallerContext & UserType) Optimize uses of Ops.IsTrue(Ops.Equal(… )) to
Ops.EqualRetBool to avoid boxing & conversions Support binding to generic .NET methods and move manual
overload resolution __overloads__ dictionary Use data flow analysis to avoid Uninitialized checks where
possible in locals Optimize generator.next calls to get good performance Bugfix: IronPython CodeDom cannot round trip 2 buttons on a
form Improve performance of constructing commonly used built-in
types FunctionEnvironment performance improvements Minor tweaks to casting orders Avoid TLS where possible in repr Bugfix: from __future__ import division doesn’t flow
into eval in some cases Bugfix: hasattr raises Bugfix: need to implement nt.startfile Bugfix: subclassing Tuple not working Bugfix: fix resource definitions in generated files Large namespaces use binary search to find attributes Bugfix: -i option doesn’t go interactive when
exception is raised SuperConsole now supports Ctrl_C handling as well as basic
console Bugfix: ‘%02d’ % 12 appends a leading zero Attribute access re-written for significant performance
gains Bugfix: nt module doesn’t implement chdir ReflectedPackage’s delay load all type loads Bugfix: atxexit doesn’t work Bugfix: IP: Cannot use a class from IronPython generated
class libraries Bugfix: Cannot delete variable referenced in nested scope Bugfix: Support special method names (__int__, __pos__,
etc…) Bugfix: Support for generic & non-generic types of the
same name in same namespace Bugfix: __doc__ strings should reflect how we mangle calling
conventions Bugfix: Update makefiles to include new assembly references Do
you want to help develop Dynamic languages on CLR? (http://members.microsoft.com/careers/search/details.aspx?JobID=6D4754DE-11F0-45DF-8B78-DC1B43134038) |
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