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. ----------------- root@wwdev:/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