diff options
Diffstat (limited to 'Doc/extending/extending.rst')
| -rw-r--r-- | Doc/extending/extending.rst | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/Doc/extending/extending.rst b/Doc/extending/extending.rst index ba6bfa70a2..8cc41840d7 100644 --- a/Doc/extending/extending.rst +++ b/Doc/extending/extending.rst @@ -375,11 +375,17 @@ optionally followed by an import of the module:: int main(int argc, char *argv[]) { + wchar_t *program = Py_DecodeLocale(argv[0], NULL); + if (program == NULL) { + fprintf(stderr, "Fatal error: cannot decode argv[0]\n"); + exit(1); + } + /* Add a built-in module, before Py_Initialize */ PyImport_AppendInittab("spam", PyInit_spam); /* Pass argv[0] to the Python interpreter */ - Py_SetProgramName(argv[0]); + Py_SetProgramName(program); /* Initialize the Python interpreter. Required. */ Py_Initialize(); @@ -391,6 +397,10 @@ optionally followed by an import of the module:: ... + PyMem_RawFree(program); + return 0; + } + .. note:: Removing entries from ``sys.modules`` or importing compiled modules into @@ -403,6 +413,13 @@ A more substantial example module is included in the Python source distribution as :file:`Modules/xxmodule.c`. This file may be used as a template or simply read as an example. +.. note:: + + Unlike our ``spam`` example, ``xxmodule`` uses *multi-phase initialization* + (new in Python 3.5), where a PyModuleDef structure is returned from + ``PyInit_spam``, and creation of the module is left to the import machinery. + For details on multi-phase initialization, see :PEP:`489`. + .. _compilation: |