mirror of https://github.com/python/cpython
command line parameters: use Py_DecodeLocale() and PyUnicode_DecodeFSDefault().
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@ -134,6 +134,9 @@ Process-wide parameters
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change for the duration of the program's execution. No code in the Python
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interpreter will change the contents of this storage.
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Use :c:func:`Py_DecodeLocale` to decode a bytes string to get a
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:c:type:`wchar_*` string.
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.. c:function:: wchar* Py_GetProgramName()
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@ -243,6 +246,9 @@ Process-wide parameters
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:data:`sys.exec_prefix` to be empty. It is up to the caller to modify these
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if required after calling :c:func:`Py_Initialize`.
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Use :c:func:`Py_DecodeLocale` to decode a bytes string to get a
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:c:type:`wchar_*` string.
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.. c:function:: const char* Py_GetVersion()
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@ -339,6 +345,9 @@ Process-wide parameters
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:data:`sys.path`, which is the same as prepending the current working
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directory (``"."``).
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Use :c:func:`Py_DecodeLocale` to decode a bytes string to get a
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:c:type:`wchar_*` string.
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.. note::
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It is recommended that applications embedding the Python interpreter
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for purposes other than executing a single script pass 0 as *updatepath*,
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@ -363,6 +372,9 @@ Process-wide parameters
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to 1 unless the :program:`python` interpreter was started with the
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:option:`-I`.
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Use :c:func:`Py_DecodeLocale` to decode a bytes string to get a
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:c:type:`wchar_*` string.
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.. versionchanged:: 3.4 The *updatepath* value depends on :option:`-I`.
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@ -377,6 +389,9 @@ Process-wide parameters
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execution. No code in the Python interpreter will change the contents of
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this storage.
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Use :c:func:`Py_DecodeLocale` to decode a bytes string to get a
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:c:type:`wchar_*` string.
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.. c:function:: w_char* Py_GetPythonHome()
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@ -58,12 +58,18 @@ perform some operation on a file. ::
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int
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main(int argc, char *argv[])
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{
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Py_SetProgramName(argv[0]); /* optional but recommended */
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Py_Initialize();
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PyRun_SimpleString("from time import time,ctime\n"
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"print('Today is', ctime(time()))\n");
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Py_Finalize();
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return 0;
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wchar_t *program = Py_DecodeLocale(argv[0], NULL);
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if (program == NULL) {
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fprintf(stderr, "Fatal error: cannot decode argv[0]\n");
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exit(1);
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}
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Py_SetProgramName(program); /* optional but recommended */
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Py_Initialize();
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PyRun_SimpleString("from time import time,ctime\n"
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"print('Today is', ctime(time()))\n");
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Py_Finalize();
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PyMem_RawFree(program);
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return 0;
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}
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The :c:func:`Py_SetProgramName` function should be called before
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@ -160,7 +166,7 @@ for data conversion between Python and C, and for error reporting. The
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interesting part with respect to embedding Python starts with ::
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Py_Initialize();
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pName = PyUnicode_FromString(argv[1]);
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pName = PyUnicode_DecodeFSDefault(argv[1]);
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/* Error checking of pName left out */
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pModule = PyImport_Import(pName);
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@ -370,11 +370,17 @@ optionally followed by an import of the module::
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int
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main(int argc, char *argv[])
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{
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wchar_t *program = Py_DecodeLocale(argv[0], NULL);
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if (program == NULL) {
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fprintf(stderr, "Fatal error: cannot decode argv[0]\n");
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exit(1);
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}
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/* Add a built-in module, before Py_Initialize */
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PyImport_AppendInittab("spam", PyInit_spam);
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/* Pass argv[0] to the Python interpreter */
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Py_SetProgramName(argv[0]);
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Py_SetProgramName(program);
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/* Initialize the Python interpreter. Required. */
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Py_Initialize();
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@ -386,6 +392,10 @@ optionally followed by an import of the module::
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...
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PyMem_RawFree(program);
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return 0;
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}
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.. note::
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Removing entries from ``sys.modules`` or importing compiled modules into
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@ -13,7 +13,7 @@ main(int argc, char *argv[])
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}
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Py_Initialize();
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pName = PyUnicode_FromString(argv[1]);
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pName = PyUnicode_DecodeFSDefault(argv[1]);
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/* Error checking of pName left out */
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pModule = PyImport_Import(pName);
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