Mailman 3 September 2008 - Python.NET

error messages
by Dirk Krause 30 Sep '08

30 Sep '08

Hi, I get the following error message when trying to run the python.exe from python2.5-UCS4 (I have a fully installed Python 2.5), any ideas? Vista professional here. ... unfortunately in german: """ Unbehandelte Ausnahme: System.IO.FileLoadException: Die Datei oder Assembly Python.Runtime, Version=0.0.0.0, Culture=neu tral, PublicKeyToken=null oder eine Abhängigkeit davon wurde nicht gefunden. Die gefundene Manifestdefinition der Assemb ly stimmt nicht mit dem Assemblyverweis überein. (Ausnahme von HRESULT: 0x80131040) Dateiname: Python.Runtime, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null bei Python.Runtime.Runtime.PyUnicode_FromUnicode(String s, Int32 size) bei Python.Runtime.Runtime.Initialize() bei Python.Runtime.PythonEngine.Initialize() bei Python.Runtime.PythonConsole.Main(String[] args) """ Thanks, Dirk

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Re: [Python.NET] Python.NET + Apache
by Wan, Ronald 15 Sep '08

15 Sep '08

Thanks for the reply Maksim. I'm still getting the same error even when I granted Full Trust to Local Intranet... don't know why... Thanks, Ronald From: Maksim Kozyarchuk [mailto:mkozyarchuk@hedgeserv.com] Sent: Monday, September 15, 2008 3:49 PM To: Wan, Ronald; pythondotnet(a)python.org Subject: Re: [Python.NET] Python.NET + Apache I've seen a similar error when running from the network, and it was due to a .NET Security policy. To isolate, you could try to change .NET Security Policy and grant Local Intranet a "Full Trust" Maksim On 9/15/08 6:17 PM, "Wan, Ronald" <rwan(a)ea.com> wrote: Hi, Has any had any success with integrating Python.NET with Apache? Python.NET works very well locally, say if I run the most basic thing like import clr in the python command line. However, when I try to do the same thing through apache, python always dumps out SystemError: dynamic module not initialized properly Currently, I'm running... Windows XP Apache Python 2.5 .NET Framework 2.0 The latest Python.NET release Does any have any suggestions of what I can do to fix this? Thanks! Thanks in advance, Ronald ________________________________ _________________________________________________ Python.NET mailing list - PythonDotNet(a)python.org http://mail.python.org/mailman/listinfo/pythondotnet

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Python.NET + Apache
by Wan, Ronald 15 Sep '08

15 Sep '08

Hi, Has any had any success with integrating Python.NET with Apache? Python.NET works very well locally, say if I run the most basic thing like import clr in the python command line. However, when I try to do the same thing through apache, python always dumps out SystemError: dynamic module not initialized properly Currently, I'm running... Windows XP Apache Python 2.5 .NET Framework 2.0 The latest Python.NET release Does any have any suggestions of what I can do to fix this? Thanks! Thanks in advance, Ronald

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Adding support for .NET 1.1 i trunk - is it possible?
by Bernt Røskar Brenna 12 Sep '08

12 Sep '08

At least for me it would be useful to have support for .NET 1.1. I am aware of the 1.0-branch, but I would like to benefit from the 2.5 and 2.6 work that has been done i trunk, as well as any bugfixes not merged from trunk to 1.0-branch. I am therefore looking into adding support for 1.1 in trunk. As I am new to Python.net, it would be nice if someone more knowledgeable had a quick peek at my planned approach. Would the following approach work?: - Where generics is used in Runtime, using conditional compilation to replace: List<string> aList; aList = new List<string>(); with List_of_string aList; aList = new List_of_string(); OR: Might possibly create sed scripts or similar to create *.net11.cs files with generics declarations replaced instead. The various List_of_ and Dictionary_of_ classes would be code generated and placed in a single code file. - Use conditional compilation to isolate all GenericUtil-related code. - Create makefile.net11 for build Does anyone have any advice to offer, reasons this approach won't work, insights into how the task is vastly more complicated than I think etc.? Bernt

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Patch for python 2.5 + unicode support in 1.1
by Bernt Røskar Brenna 12 Sep '08

12 Sep '08

First of all, I am very new to Python.NET. I needed support for embedding python 2.5 in .NET 1.1 (the code is hosted in an app. server that is stuck on .NET 1.1 and is not likely to be upgraded anytime soon). So I made a few simple changes in the makefile and runtime files. And also in pyobject and pystring to make it unicode (see my question below). ---- One question: - PyString.IsStringType() returns false for <type 'unicode'> objects. Is this the correct behaviour? I notice it also does this in trunk (.net2.0 - py2.5) - so I suppose my approach in the patch is wrong. In the patch, I change the impl. of IsStringType, so it returns true for unicode objects as well. ---- The patch is against branches\1.0-branch\pythonnet - Bernt Index: src/runtime/pyobject.cs =================================================================== --- src/runtime/pyobject.cs (revision 100) +++ src/runtime/pyobject.cs (working copy) @@ -96,9 +96,7 @@ public object AsManagedObject(Type t) { Object result; if (!Converter.ToManaged(this.Handle, t, out result, false)) { - throw new InvalidCastException( - "cannot convert object to target type" - ); + throw new InvalidCastException("cannot convert object to target type"); } return result; } @@ -819,7 +817,7 @@ /// </remarks> public override string ToString() { - IntPtr strval = Runtime.PyObject_Str(obj); + IntPtr strval = Runtime.PyObject_Unicode(obj); string result = Runtime.GetManagedString(strval); Runtime.Decref(strval); return result; Index: src/runtime/pystring.cs =================================================================== --- src/runtime/pystring.cs (revision 100) +++ src/runtime/pystring.cs (working copy) @@ -59,7 +59,7 @@ /// </remarks> public PyString(string s) : base() { - obj = Runtime.PyString_FromStringAndSize(s, s.Length); + obj = Runtime.PyUnicode_FromUnicode(s, s.Length); if (obj == IntPtr.Zero) { throw new PythonException(); } @@ -75,7 +75,7 @@ /// </remarks> public static bool IsStringType(PyObject value) { - return Runtime.PyString_Check(value.obj); + return Runtime.IsStringType(value.obj); } } Index: src/runtime/runtime.cs =================================================================== --- src/runtime/runtime.cs (revision 100) +++ src/runtime/runtime.cs (working copy) @@ -23,7 +23,12 @@ /// before calling any of these methods. /// </summary> +#if PYVERSION24 internal const string dll = "python24"; +#endif +#if PYVERSION25 + internal const string dll = "python25"; +#endif internal static bool wrap_exceptions; internal static bool is32bit; @@ -605,6 +610,10 @@ internal unsafe static extern IntPtr PyObject_Str(IntPtr pointer); + [DllImport(Runtime.dll, CallingConvention = CallingConvention.Cdecl, + ExactSpelling = true, CharSet = CharSet.Ansi)] + internal unsafe static extern IntPtr + PyObject_Unicode(IntPtr pointer); [DllImport(Runtime.dll, CallingConvention=CallingConvention.Cdecl, ExactSpelling=true, CharSet=CharSet.Ansi)] Index: makefile =================================================================== --- makefile (revision 100) +++ makefile (working copy) @@ -1,6 +1,7 @@ # Makefile for the PythonRuntime .NET assembly and tests. Thanks to # Camilo Uribe <kmilo(a)softhome.net> for contributing Mono support. +PYVERSION=25 RELEASE=pythonnet-1.0-rc2-py2.4-clr1.1-src RUNNER= ILDASM=ildasm @@ -20,7 +21,7 @@ Python.Runtime.dll: callconvutil.exe cd src; cd runtime; \ $(CSC) /nologo /unsafe /target:library /out:../../Python.Runtime.dll \ - /recurse:*.cs + /recurse:*.cs /define:PYVERSION$(PYVERSION) cd ..; cd ..; $(ILDASM) /nobar Python.Runtime.dll /out=Python.Runtime.il; $(RUNNER) ./callconvutil.exe;

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