[IronPython] IronPython 1.0 Beta 4 is now available!

[Dino Viehland]

Hello IronPython Community,

We have just released IronPython 1.0 Beta 4. This is yet another release focusing primarily on fixing bugs.  Since the beta 3 release we've cut our active number of bugs in half.  Unfortunately we didn't get to review the PythonEngine APIs in this release but will be getting this done for the next beta.
Although major changes are few in this release some of the bigger changes include:

Fix beta 3 assembly loading bug
Auto-indentation support for the super console
Support pep-263 file encodings
AST visitor changes (*)



A more complete list of changes follows at the end.

You can download the release from: http://www.microsoft.com/downloads/details.aspx?FamilyID=ab942d78-b3df-428d-a2e7-f80949607c1a&displaylang=en

We'd like to thank everyone in the community for your bug reports and suggestions that helped make this a better release: Alex Martelli, Anthony Tarlano, Chee Meng, Erin Renshaw, Giles Thomas, Greg Lee, grizupo, J. Merrill, Jeff Griffiths, Jon Kale, minwei, Neville Bagnall, Nicholas Jacobson, Paparipote, Richard Hsu, Richard Bothne, and Sanghyeon Seo.


Thanks and keep in touch,
The IronPython Team


(*) The AST visitor changes in IronPython 1.0 Beta 4 are not compatible with the IronPython Visual Studio integration released in the March CTP of the Visual Studio SDK. Some code changes in the VS integration sample are required to use it with the latest IronPython 1.0 Beta 4.


More complete list of changes and bug fixes:
============================================
Bugfix: Infinite recursion in import code
Traceback support
Support for methods only implemented via explicit interface implementation
Bugfix: SubClass check throws ArgumentNull Exception
Bugfix: Slice is (incorrectly) hashable WAS: dict[:] showing KeyError instead of TypeError
Bugfix: tuple unpacking issues
Bugfix: Calling __str__ on a Python exception class object causes an IndexError
Bugfix: Trying to set methods on "built-in" classes fails silently
Bugfix: Inheriting from an interface causes peverify warnings
Bugfix: raise "foo" raises an exception, but is eaten by top-level rather than reported
Bugfix: eval - locals can be any mapping object (formerly required to be a dictionary)
Bugfix: Calling exc_info when there is no exception in the current stack causes a NullRef, rather than returning (None, None, None)
Bugfix: Index out of bounds exception when importing minidom
Bugfix: sequence.index(None) and sequence.count(None) should throw Type error instead of ArgNullExcep
Bugfix: "abc".find(None) throws SystemError: "Object reference not set to an instance of an object."
Bugfix: "except <name>, <data>" statement does not capture exception data; <data> is just a copy of the exception
Bugfix: sgmllib running on tutorial.htm throws
Bugfix: Regular expressions: RE_Pattern instance method match(text, pos, endpos) not implemented
Bugfix: multiline string does not return to primary interpreter prompt
Bugfix: re.split with maxcount != 0 differs from specification
Bugfix: Old class comparisons give wrong results, same as User Type
Bugfix: IronPython won't call custom comparison operators on .NET types
Bugfix: IronPython creates instance of class with __module__ set to contents of __name__ rather than the module name
Bugfix: IP uses wrong slot to generate classe's module name
Support for constructing Python file from .NET Stream
Bugfix: Subclassing str & creating subclass fails
Bugfix: Fix call to System.Double.ToString(1.0, 'f') (ReflectedOps types not storing both Python & non-Python names)
Bugfix: -u command line option
Bugfix: For an old-style class C, str(C) != C.__module__ + '.' + C.__main__
Bugfix: SyntaxError raised when a function defined to take kwargs is called with the name of the kwargs parameter as one of the keyword-specified argument
Bugfix: Better formatting for System.Single
Bugfix: Improve string formatting of floats for better compat with CPython
Bugfix: sys.argv doesn't include executed python script
Bugfix: IronPython builtin f.read() functionality differs from CPython builtin f.read() functionality
Bugfix: CPython/IronPython discrepancy when comparing strings
Bugfix: +=, ... also bind locals, fix binder
Bugfix: CPython/IronPython discrepancy in behavior with respect to power operation
Bugfix: ComplexOps.FloorDivide just does ordinary division
Bugfix: Make PythonFile more robust WAS: sys.__stdin__.write("blah\n") causing NullReferenceException in IronPython
Bugfix: Opening a file for writing and then attempting to read before closing the file causes a NullReferenceException
Bugfix: Implement -c command line argument
Bugfix: Add ability to compiler to generate 32 bit or 64 bit assemblies
Bugfix: Fix compiler resource support
Bugfix: from __future__ imports must occur at the beginning of the file, but can after the comments
Bugfix: eval failed to find local name
Bugfix: multiline string can't have blank lines
Bugfix: better error message for functions with default arguments
Bugfix: buffer() throws exception with message referring to method "ctor" instead of the expected "buffer"
Bugfix: Encoding/Decoding tests in tests_str.py disabled
Bugfix: In a Python subclass of a .NET class, inherited (but not overriden) methods are not shown as attributes of either class or instance
Bugfix: Finish time module (day of year / week of year custom formatting)
Bugfix: @accepts, @returns decorators not yet defined in clr module
Bugfix: Can't inherit from interfaces with properties
Bugfix: unicode(xxx ','raw-unicode-escape') issue
Bugfix: The error message associated with incorrect usage of constructors of builtin types are confusing
Bugfix: Method dispatch: skip generic method when bindmethod
Bugfix: Investigate why CPython throws a syntax error for a compile statement that IronPython parses correctly
Bugfix: NoneType arguments to coerce() causing unexpected SystemErrors
Bugfix: Stack overflow adding reference to System.Xml
Bugfix: re.compile does not accept "\\_" as a valid escape sequence
Bugfix: re module - difference result of not matched group
Bugfix: Interactive console not parsing certain 'if' statements correctly
Implement -E command line parameter
Implement -OO command line parameter
Implement -S command line parameter
Implement -t command line parameter
Implement -V command line parameter
Implement '-' command line parameter
Bugfix: Pay customdict, frame, env refactoring debt
Bugfix: Default parameters are not available for functions generated as DynamicMethod
Bugfix: Method dispatch: the story of None as parameter




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