[IronPython] Error with non-jagged array?

Martin Maly martmaly at exchange.microsoft.com
Sat Apr 9 18:20:15 PDT 2005


This is an IronPython bug. We only support one-dimensional indexing at
the moment.

Martin


> -----Original Message-----
> From: users-ironpython.com-bounces at lists.ironpython.com [mailto:users-
> ironpython.com-bounces at lists.ironpython.com] On Behalf Of Keith J.
Farmer
> Sent: Saturday, April 09, 2005 3:10 AM
> To: Discussion of IronPython
> Subject: [IronPython] Error with non-jagged array?
> 
> Caveat:  I ran this using Mono, so I'm not sure if it's really a
problem
> with Mono, or a bug in IronPython.  It looks like there are some
> problems with arrays, but someone with a Win32 version should check
> this.
> 
> The following uses Mapack, downloadable from Lutz Roeder's site.
> 
> Intended usage from C# would be:
> 
> 	Matrix A = new Matrix(3, 3);
> 	A[0,0] = 2.0; A[0,1] = 1.0; A[0,2] = 2.0;
> 	A[1,0] = 1.0; A[1,1] = 4.0; A[1,2] = 0.0;
> 	A[2,0] = 2.0; A[2,1] = 0.0; A[2,2] = 8.0;
> 
> ----------
> Keith J. Farmer
> kfarmer at thuban.org
> http://www.thuban.org
> 
> C:\Program Files\IronPython-0.7.1\bin>mono IronPythonConsole.exe
> IronPython 0.7.1 on .NET 2.0.40607.16
> Copyright (c) Microsoft Corporation. All rights reserved.
> >>> import sys
> >>> sys.LoadAssemblyFromFile("C:\\Documents and
> Settings\\kfarmer\\Desktop\\Mapack\\Build\\Mapack.dll")
> >>> from Mapack import *
> >>> m = Matrix.Random(3, 3)
> >>> m
> 0.225364771776537 0.31672962862846 0.88264873478685
> 0.648747126408269 0.137992081762288 0.868301292354381
> 0.880461812895006 0.061446850682351 0.249342372757076
> 
> >>> m.Transpose()
> 0.225364771776537 0.648747126408269 0.880461812895006
> 0.31672962862846 0.137992081762288 0.061446850682351
> 0.88264873478685 0.868301292354381 0.249342372757076
> 
> >>> m[0,0]
> System.Reflection.TargetParameterCountException: Number of parameter
> does not match expected count.
> in <0x00111> System.Reflection.Binder:ConvertArgs
>
(System.Reflection.Binder,object[],System.Reflection.ParameterInfo[],Sys
> tem.Globalization.CultureInfo)
> in <0x00040> System.Reflection.MonoMethod:Invoke
>
(object,System.Reflection.BindingFlags,System.Reflection.Binder,object[]
> ,System.Globalization.CultureInfo)
> in <0x00060> System.Reflection.MonoProperty:GetValue
>
(object,System.Reflection.BindingFlags,System.Reflection.Binder,object[]
> ,System.Globalization.CultureInfo)
> in <0x00017> System.Reflection.PropertyInfo:GetValue (object,object[])
> in <0x00070> IronPython.Objects.PythonType:__getitem__ (object,object)
> in <0x002ca> IronPython.Objects.Ops:GetIndex (object,object)
> in <0x000a4> input_7:Run (IronPython.Objects.Frame)
> in <0x0023f> IronPython.Hosting.PythonEngine:DoOneInteractive
> (IronPython.Objects.Frame)
> in <0x0003f> IronPython.Hosting.PythonEngine:RunInteractive ()
> 
> >>> m[0][0]
> System.Reflection.TargetParameterCountException: Number of parameter
> does not match expected count.
> in <0x00111> System.Reflection.Binder:ConvertArgs
>
(System.Reflection.Binder,object[],System.Reflection.ParameterInfo[],Sys
> tem.Globalization.CultureInfo)
> in <0x00040> System.Reflection.MonoMethod:Invoke
>
(object,System.Reflection.BindingFlags,System.Reflection.Binder,object[]
> ,System.Globalization.CultureInfo)
> in <0x00060> System.Reflection.MonoProperty:GetValue
>
(object,System.Reflection.BindingFlags,System.Reflection.Binder,object[]
> ,System.Globalization.CultureInfo)
> in <0x00017> System.Reflection.PropertyInfo:GetValue (object,object[])
> in <0x00070> IronPython.Objects.PythonType:__getitem__ (object,object)
> in <0x002ca> IronPython.Objects.Ops:GetIndex (object,object)
> in <0x00051> input_8:Run (IronPython.Objects.Frame)
> in <0x0023f> IronPython.Hosting.PythonEngine:DoOneInteractive
> (IronPython.Objects.Frame)
> in <0x0003f> IronPython.Hosting.PythonEngine:RunInteractive ()
> 
> >>> m.__dict__
> {'Trace': <property# Trace on Matrix>, 'Submatrix': <method# Submatrix
> on Mapack.Matrix>, 'GetHashCode': <method# GetHashCode on
> System.Object>, 'Diagonal': <method# Diagonal on Mapack.Matrix>,
> 'Random': <method# Random on Mapack.Matrix>, 'IsSquare': <property#
> IsSquare on Matrix>, 'Item': <property# Item on Matrix>, 'Inverse':
> <property# Inverse on Matrix>, 'Norm1': <property# Norm1 on Matrix>,
> 'IsSymmetric': <property# IsSymmetric on Matrix>, 'InfinityNorm':
> <property# InfinityNorm on Matrix>, 'Transpose': <method# Transpose on
> Mapack.Matrix>, 'ToString': <method# ToString on Mapack.Matrix>,
'Rows':
> <property# Rows on Matrix>, '__new__': <method Mapack.Matrix.__new__>,
> 'GetType': <method# GetType on System.Object>, '__repr__': <built-in
> function ReprMethod>, 'FrobeniusNorm': <property# FrobeniusNorm on
> Matrix>, 'Solve': <method# Solve on Mapack.Matrix>, 'Columns':
> <property# Columns on Matrix>, 'Determinant': <property# Determinant
on
> Matrix>,'Clone': <method# Clone on Mapack.Matrix>, 'Equals': <method#
> Equals on System.Object>}
> >>>
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