Python.NET May 2011

pythonnet@python.org

8 participants
8 discussions

Setting PYTHONPATH from code
by Sharon Rozenblum 05 Apr '13

05 Apr '13

Hi! Can someone tell me how to set PYTHONPATH variable in code when working with Python.Runtime.dll without changing the value in the system variables before. Thanks SHARON ________________________________ PLEASE NOTE: The information contained in this electronic mail message is intended only for the use of the designated recipient(s) named above. If the reader of this message is not the intended recipient, you are hereby notified that you have received this message in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify the sender by telephone or e-mail (as shown above) immediately and destroy any and all copies of this message in your possession (whether hard copies or electronically stored copies).

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Re: [Python.NET] [ pythonnet-Bugs-3303462 ] Stack corruption
by Barton 23 Jan '12

23 Jan '12

Thank you very much! It will be helpful for us to know which platform (Windows [Mono or .NET] vs Linux) where this is happening. On 05/17/11 10:52, SourceForge.net wrote: > Bugs item #3303462, was opened at 2011-05-18 02:52 > Message generated for change (Tracker Item Submitted) made by christallire > You can respond by visiting: > https://sourceforge.net/tracker/?func=detail&atid=823891&aid=3303462&group_… > > Please note that this message will contain a full copy of the comment thread, > including the initial issue submission, for this request, > not just the latest update. > Category: None > Group: None > Status: Open > Resolution: None > Priority: 5 > Private: No > Submitted By: xeph (christallire) > Assigned to: Nobody/Anonymous (nobody) > Summary: Stack corruption > > Initial Comment: > I'm using python.net heavily in my server/client project > > I found Stack buffer overflow exception OR stack corruption exception is caused when python script throws an exception, which is caught by CLR code especially when GC is collecting its own objects. > I think this problem is caused when allocated objects are unwinded by CLR engine. > (threw in CLR GC Collection/GC Security Cookie Check) > > I found problem this 2 months ago, been struggling to solve this problem, because it happens rarely, randomly when GC is collecting objects > I solved this problem via removing all of pythonexception throwing code from PythonEngine, changed to return parameters to null > > Hope you have better solution for solve this problem :) > > ---------------------------------------------------------------------- > > You can respond by visiting: > https://sourceforge.net/tracker/?func=detail&atid=823891&aid=3303462&group_… >

2 1

Several patches to improve compilation with Mono
by Philip Lorenz 02 Sep '11

02 Sep '11

Hi, after trying to compile Python for .NET on ArchLinux x86_64 I have run into several issues which the attached patches fix: 1. Enable Mono config file loading. Otherwise a Python build with UCS4 Unicode strings does not work as the Mono.Posix module cannot find msvcrt (which is mapped to libc in Mono's config files). 2. Python.Runtime.dll.config is missing mappings for Python 2.7 3. The architecture detection code in the Makefile did not work correctly (checking for the 86 substring is true for both x86 as well as x86_64 targets). 4. I have renamed the clrmodule.il target in the Makefile to clrmodule_make.il. Otherwise a fresh SVN checkout would not build as clrmodule.il is already included. 5. Adapt the clrmod Makefile to support Mono 2.8 pkgconfig change. Additionally, retrieve Glib 2 options from its pkgconfig and compile the x86_64 build with -fPIC. 6. Support the standard DESTDIR parameter for the install target. Additionally, install Python.Runtime.dll and Python.Runtime.dll.config to the site-packages folder so it is found by the clr module. If you have any comments or if there are any issues with these patches please let me know. Philip

4 7

Python for .NET with PythonXY ?
by Daniel Mader 18 May '11

18 May '11

Dear list, with a couple of colleagues, I am using PythonXY as the main Python distribution when using Windows. It is based on Python 2.6 (2.7 is now in the focus so that the next release will be made for this). >From what we see it should be possible to make this installation ".NET aware" without duplicating anything. However, we can't really find the required steps to do so. Could you please point out what we'd need to download in order to proceed? Is there a "clean" installer so that PythonXY can be updated later? Or does a manual install interfere with this? Thank you many times in advance for a quick-installation guide, best regards, Daniel

2 2

issue disambiguating overloaded method that takes an array
by Adrian Perez 17 May '11

17 May '11

Hello everyone, This is probably a total n00b question, but I've been using pythonnet in our toolchain to communicate with a private c# assembly for months now without ever running into a problem I couldn't eventually figure out. This one has me totally stumped, and I'm hoping something obvious will jump out at experienced eyes. (I did a find/replace for secrecy, besides silly names these are the raw results I get back) A C# class exposes a method 'WriteByte' that has 5 overloads (note that only one of them takes 2 arguments): >>> accessor= MyCompany.SomeNamespace.SomeTypeArrayAccessor >>> accessor.WriteByte.__overloads__ Boolean WriteByte(MyCompany.SomeNamespace.SomeType, Byte[]) Boolean WriteByte(MyCompany.SomeNamespace.SomeType, Byte[], Int32 ByRef) Boolean WriteByte(MyCompany.SomeNamespace.SomeType, System.Collections.Generic.IEnumerable`1[System.Byte], Int32 ByRef) Boolean WriteByte(MyCompany.SomeNamespace.SomeType, Int32, System.Collections.Generic.IEnumerable`1[System.Byte], Int32 ByRef) Boolean WriteByte(MyCompany.SomeNamespace.SomeType, Int32, Byte[], Int32 ByRef) I attempt to disambiguate by selecting the 2-arg method I want by type: >>> desired_method= accessor.WriteByte.__overloads__[MyCompany.SomeNamespace.SomeType, System.Array[System.Byte]] The problem may be right here - if I print out desired_method.__doc__ I get the same 5 methods listed above. Anyway, then I compute my arguments, and can verify they have the types I expect (If it matters, arg_b is created by a call to System.IO.BinaryReader.ReadBytes()): >>> arg_a= ... >>> arg_b= ... >>> type(arg_a) <class 'MyCompany.SomeNamespace.SomeType'> >>> type(arg_b) <class 'System.Byte[]'> However, when I try to call the disambiguated method with the correct args, I get no love: >>> result= desired_method(arg_a, arg_b) Traceback (most recent call last): File "<string>", line 1, in <fragment> TypeError: No method matches given arguments Does anyone see the obvious thing I'm doing wrong? Disambiguating can be a pain but I've done it before for other methods and have never had such an impossible time getting the correct method called. Thanks, Adrian Perez

3 3

Django Developers Needed!
by Dawn Vale 09 May '11

09 May '11

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1 0

Python 3 Support?
by Douglas Rohm 08 May '11

08 May '11

Hi, Are there plans to add support for py3k? Is there a way I can get a .NET .dll to work under py3k currently or will I have to use python 2.7? Thanks. Doug

2 1

Several patches to improve compilation with Mono
by Philip Lorenz 04 May '11

04 May '11

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Python.NET May 2011