Example #1
0
    static int
Python_Init(void)
{
    if (!initialised)
    {
#ifdef DYNAMIC_PYTHON
	if (!python_enabled(TRUE))
	{
	    EMSG(_("E263: Sorry, this command is disabled, the Python library could not be loaded."));
	    goto fail;
	}
#endif

#ifdef PYTHON_HOME
	Py_SetPythonHome(PYTHON_HOME);
#endif

	init_structs();

#if !defined(MACOS) || defined(MACOS_X_UNIX)
	Py_Initialize();
#else
	PyMac_Initialize();
#endif
	/* initialise threads */
	PyEval_InitThreads();

#ifdef DYNAMIC_PYTHON
	get_exceptions();
#endif

	if (PythonIO_Init())
	    goto fail;

	if (PythonMod_Init())
	    goto fail;

	/* Remove the element from sys.path that was added because of our
	 * argv[0] value in PythonMod_Init().  Previously we used an empty
	 * string, but dependinding on the OS we then get an empty entry or
	 * the current directory in sys.path. */
	PyRun_SimpleString("import sys; sys.path = filter(lambda x: x != '/must>not&exist', sys.path)");

	/* the first python thread is vim's, release the lock */
	Python_SaveThread();

	initialised = 1;
    }

    return 0;

fail:
    /* We call PythonIO_Flush() here to print any Python errors.
     * This is OK, as it is possible to call this function even
     * if PythonIO_Init() has not completed successfully (it will
     * not do anything in this case).
     */
    PythonIO_Flush();
    return -1;
}
Example #2
0
    static int
Python_Init(void)
{
    if (!initialised)
    {
#if defined(PY_VERSION_HEX) && PY_VERSION_HEX >= 0x02070000
	PyObject *site;
#endif

#ifdef DYNAMIC_PYTHON
	if (!python_enabled(TRUE))
	{
	    EMSG(_("E263: Sorry, this command is disabled, the Python library could not be loaded."));
	    goto fail;
	}
#endif

#ifdef PYTHON_HOME
# ifdef DYNAMIC_PYTHON
	if (mch_getenv((char_u *)"PYTHONHOME") == NULL)
# endif
	    Py_SetPythonHome(PYTHON_HOME);
#endif

	init_structs();

#if defined(PY_VERSION_HEX) && PY_VERSION_HEX >= 0x02070000
	/* Disable implicit 'import site', because it may cause Vim to exit
	 * when it can't be found. */
	Py_NoSiteFlag++;
#endif

#if !defined(MACOS) || defined(MACOS_X_UNIX)
	Py_Initialize();
#else
	PyMac_Initialize();
#endif

#if defined(PY_VERSION_HEX) && PY_VERSION_HEX >= 0x02070000
	/* 'import site' explicitly. */
	site = PyImport_ImportModule("site");
	if (site == NULL)
	{
	    EMSG(_("E887: Sorry, this command is disabled, the Python's site module could not be loaded."));
	    goto fail;
	}
	Py_DECREF(site);
#endif

	/* Initialise threads, and below save the state using
	 * PyEval_SaveThread.  Without the call to PyEval_SaveThread, thread
	 * specific state (such as the system trace hook), will be lost
	 * between invocations of Python code. */
	PyEval_InitThreads();
#ifdef DYNAMIC_PYTHON
	get_exceptions();
#endif

	if (PythonIO_Init_io())
	    goto fail;

	if (PythonMod_Init())
	    goto fail;

	globals = PyModule_GetDict(PyImport_AddModule("__main__"));

	/* Remove the element from sys.path that was added because of our
	 * argv[0] value in PythonMod_Init().  Previously we used an empty
	 * string, but depending on the OS we then get an empty entry or
	 * the current directory in sys.path. */
	PyRun_SimpleString("import sys; sys.path = filter(lambda x: x != '/must>not&exist', sys.path)");

	/* lock is created and acquired in PyEval_InitThreads() and thread
	 * state is created in Py_Initialize()
	 * there _PyGILState_NoteThreadState() also sets gilcounter to 1
	 * (python must have threads enabled!)
	 * so the following does both: unlock GIL and save thread state in TLS
	 * without deleting thread state
	 */
#ifndef PY_CAN_RECURSE
	saved_python_thread =
#endif
	    PyEval_SaveThread();

	initialised = 1;
    }

    return 0;

fail:
    /* We call PythonIO_Flush() here to print any Python errors.
     * This is OK, as it is possible to call this function even
     * if PythonIO_Init_io() has not completed successfully (it will
     * not do anything in this case).
     */
    PythonIO_Flush();
    return -1;
}