1 // Copyright (C) 2007-2019 CEA/DEN, EDF R&D, OPEN CASCADE
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 // Author : Roman NIKOLAEV, Open CASCADE S.A.S. (roman.nikolaev@opencascade.com)
23 #include "SUITApp_init_python.hxx"
26 #if PY_VERSION_HEX < 0x03050000
28 Py_EncodeLocale(const wchar_t *arg, size_t *size)
30 return _Py_wchar2char(arg, size);
33 Py_DecodeLocale(const char *arg, size_t *size)
35 return _Py_char2wchar(arg, size);
39 bool SUIT_PYTHON::initialized = false;
41 void SUIT_PYTHON::init_python(int argc, char **argv)
43 if (Py_IsInitialized())
48 wchar_t **changed_argv = new wchar_t*[argc]; // Setting arguments
49 for (int i = 0; i < argc; i++)
51 changed_argv[i] = Py_DecodeLocale(argv[i], NULL);
54 Py_SetProgramName(changed_argv[0]);
55 Py_Initialize(); // Initialize the interpreter
57 PySys_SetArgv(argc, changed_argv);
58 PyRun_SimpleString("import threading\n");
59 // VSR (22/09/2016): This is a workaround to prevent invoking qFatal() from PyQt5
60 // causing application aborting
62 script += "def _custom_except_hook(exc_type, exc_value, exc_traceback):\n";
63 script += " import sys\n";
64 script += " sys.__excepthook__(exc_type, exc_value, exc_traceback)\n";
67 script += "import sys\n";
68 script += "sys.excepthook = _custom_except_hook\n";
69 script += "del _custom_except_hook, sys\n";
70 int res = PyRun_SimpleString(qUtf8Printable(script));
71 // VSR (22/09/2016): end of workaround
72 PyEval_InitThreads(); // Create (and acquire) the interpreter lock - can be called many times
73 // Py_InitThreads acquires the GIL
74 PyThreadState *pts = PyGILState_GetThisThreadState();
75 PyEval_ReleaseThread(pts);
76 SUIT_PYTHON::initialized = true;