Any chance you're on a 64-bit system? If not, I suspect that the mono runtime is running in STA threading (which means you can't call it from other threads, generally). If so, you may be able to find a way to get mono to run in MTA (I don't know the details of how you would do that though).
sorry-that's-probably-not-too-helpful'ly, Brian On 4/1/08 9:19 AM, "Ulrich Eck" <[EMAIL PROTECTED]> wrote: > Hi all, > > i'm trying to use the C#-Library iTextSharp within a TurboGears > Application. > > the most convenient way would be, to use pythonnet to access the > needed methods of the c#-library. > > but .. i get a Segfault when trying to use clr imports: > > executed with: "mono python.exe start-netdemo.py" > > -------------------------- > #!/usr/bin/python > # -*- coding: utf-8 -*- > """Start script for the netdemo TurboGears project. > > This script is only needed during development for running from the > project > directory. When the project is installed, easy_install will create a > proper start script. > """ > > import clr > import System > > import sys > from netdemo.commands import start, ConfigurationError > > if __name__ == "__main__": > try: > start() > except ConfigurationError, exc: > sys.stderr.write(str(exc)) > sys.exit(1) > --------------- > > > the following traceback is produced - can anyone suggest, how to debug > or find a solution - my expectation is, that there is some trouble > with threading, but this is just guessing. pythonnet basically works, > i can import from iTextSharp using the interpreter-cli. > > ----------------- > [EMAIL PROTECTED]:/data/develop/test/netdemo# mono python.exe start-netdemo.py > Stacktrace: > > at (wrapper managed-to-native) > Python.Runtime.Runtime.PyInt_FromLong (intptr) <0x00004> > at (wrapper managed-to-native) > Python.Runtime.Runtime.PyInt_FromLong (intptr) <0xffffffff> > at Python.Runtime.Runtime.PyInt_FromInt32 (int) <0x0002f> > at Python.Runtime.Runtime.Initialize () <0x00234> > at Python.Runtime.PythonEngine.Initialize () <0x0002f> > at (wrapper runtime-invoke) System.Object.runtime_invoke_void > (object,intptr,intptr,intptr) <0xffffffff> > > Native stacktrace: > > /usr/lib/libmono.so.0 [0xb7b096c6] > /usr/lib/libmono.so.0 [0xb7adbe96] > [0xffffe440] > [0xb6f69681] > [0xb6f69630] > [0xb71e267d] > [0xb71dc790] > [0xb71dc6f0] > /usr/lib/libmono.so.0 [0xb7adbcc6] > /usr/lib/libmono.so.0(mono_runtime_invoke+0x33) [0xb7b6f88e] > /usr/lib/python2.5/site-packages/clr.so(main_thread_handler > +0xc6) [0xb7cbde16] > /usr/lib/python2.5/site-packages/clr.so(PyNet_Init+0x7f) > [0xb7cbdf7f] > /usr/lib/python2.5/site-packages/clr.so(initclr+0x76) > [0xb7cbdc46] > /usr/bin/python(_PyImport_LoadDynamicModule+0xa4) [0x80e1a34] > /usr/bin/python [0x80df6d5] > /usr/bin/python [0x80df98b] > /usr/bin/python [0x80dfe3e] > /usr/bin/python [0x80e0068] > /usr/bin/python(PyImport_ImportModuleLevel+0x27) [0x80e04f7] > /usr/bin/python [0x80c1db4] > /usr/bin/python(PyObject_Call+0x27) [0x805c9e7] > /usr/bin/python(PyEval_CallObjectWithKeywords+0x6c) [0x80c232c] > /usr/bin/python(PyEval_EvalFrameEx+0x18bd) [0x80c4a9d] > /usr/bin/python(PyEval_EvalCodeEx+0x775) [0x80ca115] > /usr/bin/python(PyEval_EvalCode+0x57) [0x80ca187] > /usr/bin/python(PyRun_FileExFlags+0xf8) [0x80e9698] > /usr/bin/python(PyRun_SimpleFileExFlags+0x187) [0x80e9927] > /usr/bin/python(Py_Main+0x9c0) [0x8059390] > /usr/bin/python(main+0x22) [0x80588c2] > /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe0) > [0xb7d9f050] > /usr/bin/python [0x8058831] > > Debug info from gdb: > > Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1". > [Thread debugging using libthread_db enabled] > [New Thread -1210545984 (LWP 8343)] > [New Thread -1222792304 (LWP 8345)] > [New Thread -1222710384 (LWP 8344)] > 0xffffe410 in __kernel_vsyscall () > 3 Thread -1222710384 (LWP 8344) 0xffffe410 in __kernel_vsyscall () > 2 Thread -1222792304 (LWP 8345) 0xffffe410 in __kernel_vsyscall () > 1 Thread -1210545984 (LWP 8343) 0xffffe410 in __kernel_vsyscall () > > Thread 3 (Thread -1222710384 (LWP 8344)): > #0 0xffffe410 in __kernel_vsyscall () > #1 0xb7f0d9f6 in ?? () from /lib/tls/i686/cmov/libpthread.so.0 > #2 0xb7bec7db in ?? () from /usr/lib/libmono.so.0 > #3 0xb71ee3cc in ?? () > #4 0x00000000 in ?? () > > Thread 2 (Thread -1222792304 (LWP 8345)): > #0 0xffffe410 in __kernel_vsyscall () > #1 0xb7f0a676 in pthread_cond_wait@@GLIBC_2.3.2 () > from /lib/tls/i686/cmov/libpthread.so.0 > #2 0xb7bf191e in ?? () from /usr/lib/libmono.so.0 > #3 0xb76c81dc in ?? () > #4 0xb76c81c4 in ?? () > #5 0xb7f08541 in pthread_mutex_lock () from /lib/tls/i686/cmov/ > libpthread.so.0 > #6 0xb7bf1c2b in ?? () from /usr/lib/libmono.so.0 > #7 0xb76c81dc in ?? () > #8 0xb76c81c4 in ?? () > #9 0x00000000 in ?? () > > Thread 1 (Thread -1210545984 (LWP 8343)): > #0 0xffffe410 in __kernel_vsyscall () > #1 0xb7e552a1 in select () from /lib/tls/i686/cmov/libc.so.6 > #2 0xb7a36780 in g_spawn_sync () from /usr/lib/libglib-2.0.so.0 > #3 0xb7a36b4c in g_spawn_command_line_sync () from /usr/lib/ > libglib-2.0.so.0 > #4 0xb7b097ad in ?? () from /usr/lib/libmono.so.0 > #5 0xb797f840 in ?? () > #6 0xb797f828 in ?? () > #7 0xb797f824 in ?? () > #8 0xb797f820 in ?? () > #9 0x00000000 in ?? () > #0 0xffffe410 in __kernel_vsyscall () > > > ================================================================= > Got a SIGSEGV while executing native code. This usually indicates > a fatal error in the mono runtime or one of the native libraries > used by your application. > ================================================================= > > 2008-04-01 15:10:11,740 cherrypy.msg INFO ENGINE: SystemExit raised: > shutting down autoreloader > 2008-04-01 15:10:11,741 cherrypy.msg INFO HTTP: HTTP Server shut down > 2008-04-01 15:10:11,746 cherrypy.msg INFO ENGINE: CherryPy shut down > ----------------- > > > Do i need to do special things (like pythoncom->CoInitialize) when > using pythonnet in a multithreaded environment ? > > thanks for all your hints - i'ld try to avoid using python and > ironpython together with pyro ;-) or worse, code the itext-stuff in c# > and > call it from the cmd-line ;-) > > cheers Ulrich > > > _________________________________________________ > Python.NET mailing list - PythonDotNet@python.org > http://mail.python.org/mailman/listinfo/pythondotnet -------------------------- Brian Lloyd [EMAIL PROTECTED] _________________________________________________ Python.NET mailing list - PythonDotNet@python.org http://mail.python.org/mailman/listinfo/pythondotnet
