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https://github.com/python/cpython
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bpo-40910: Export Py_GetArgcArgv() function (GH-20721)
Export explicitly the Py_GetArgcArgv() function to the C API and document the function. Previously, it was exported implicitly which no longer works since Python is built with -fvisibility=hidden. * Add PyConfig._orig_argv member. * Py_InitializeFromConfig() no longer calls _PyConfig_Write() twice. * PyConfig_Read() no longer initializes Py_GetArgcArgv(): it is now _PyConfig_Write() responsibility. * _PyConfig_Write() result type becomes PyStatus instead of void. * Write an unit test on Py_GetArgcArgv().
This commit is contained in:
parent
8f023a2f66
commit
e81f6e687d
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@ -43,6 +43,7 @@ Functions:
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* :c:func:`Py_PreInitializeFromArgs`
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* :c:func:`Py_PreInitializeFromArgs`
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* :c:func:`Py_PreInitializeFromBytesArgs`
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* :c:func:`Py_PreInitializeFromBytesArgs`
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* :c:func:`Py_RunMain`
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* :c:func:`Py_RunMain`
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* :c:func:`Py_GetArgcArgv`
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The preconfiguration (``PyPreConfig`` type) is stored in
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The preconfiguration (``PyPreConfig`` type) is stored in
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``_PyRuntime.preconfig`` and the configuration (``PyConfig`` type) is stored in
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``_PyRuntime.preconfig`` and the configuration (``PyConfig`` type) is stored in
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@ -984,6 +985,14 @@ customized Python always running in isolated mode using
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:c:func:`Py_RunMain`.
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:c:func:`Py_RunMain`.
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Py_GetArgcArgv()
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----------------
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.. c:function:: void Py_GetArgcArgv(int *argc, wchar_t ***argv)
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Get the original command line arguments, before Python modified them.
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Multi-Phase Initialization Private Provisional API
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Multi-Phase Initialization Private Provisional API
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--------------------------------------------------
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--------------------------------------------------
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@ -411,6 +411,14 @@ typedef struct {
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/* If non-zero, disallow threads, subprocesses, and fork.
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/* If non-zero, disallow threads, subprocesses, and fork.
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Default: 0. */
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Default: 0. */
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int _isolated_interpreter;
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int _isolated_interpreter;
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/* Original command line arguments. If _orig_argv is empty and _argv is
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not equal to [''], PyConfig_Read() copies the configuration 'argv' list
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into '_orig_argv' list before modifying 'argv' list (if parse_argv
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is non-zero).
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_PyConfig_Write() initializes Py_GetArgcArgv() to this list. */
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PyWideStringList _orig_argv;
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} PyConfig;
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} PyConfig;
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PyAPI_FUNC(void) PyConfig_InitPythonConfig(PyConfig *config);
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PyAPI_FUNC(void) PyConfig_InitPythonConfig(PyConfig *config);
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@ -436,5 +444,13 @@ PyAPI_FUNC(PyStatus) PyConfig_SetWideStringList(PyConfig *config,
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PyWideStringList *list,
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PyWideStringList *list,
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Py_ssize_t length, wchar_t **items);
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Py_ssize_t length, wchar_t **items);
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/* --- Helper functions --------------------------------------- */
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/* Get the original command line arguments, before Python modified them.
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See also PyConfig._orig_argv. */
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PyAPI_FUNC(void) Py_GetArgcArgv(int *argc, wchar_t ***argv);
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#endif /* !Py_LIMITED_API */
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#endif /* !Py_LIMITED_API */
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#endif /* !Py_PYCORECONFIG_H */
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#endif /* !Py_PYCORECONFIG_H */
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@ -150,7 +150,7 @@ extern PyStatus _PyConfig_Copy(
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PyConfig *config,
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PyConfig *config,
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const PyConfig *config2);
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const PyConfig *config2);
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extern PyStatus _PyConfig_InitPathConfig(PyConfig *config);
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extern PyStatus _PyConfig_InitPathConfig(PyConfig *config);
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extern void _PyConfig_Write(const PyConfig *config,
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extern PyStatus _PyConfig_Write(const PyConfig *config,
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struct pyruntimestate *runtime);
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struct pyruntimestate *runtime);
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extern PyStatus _PyConfig_SetPyArgv(
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extern PyStatus _PyConfig_SetPyArgv(
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PyConfig *config,
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PyConfig *config,
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@ -366,6 +366,7 @@ class InitConfigTests(EmbeddingTestsMixin, unittest.TestCase):
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'program_name': GET_DEFAULT_CONFIG,
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'program_name': GET_DEFAULT_CONFIG,
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'parse_argv': 0,
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'parse_argv': 0,
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'argv': [""],
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'argv': [""],
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'_orig_argv': [],
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'xoptions': [],
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'xoptions': [],
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'warnoptions': [],
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'warnoptions': [],
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@ -739,7 +740,12 @@ def test_init_from_config(self):
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'pycache_prefix': 'conf_pycache_prefix',
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'pycache_prefix': 'conf_pycache_prefix',
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'program_name': './conf_program_name',
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'program_name': './conf_program_name',
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'argv': ['-c', 'arg2', ],
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'argv': ['-c', 'arg2'],
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'_orig_argv': ['python3',
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'-W', 'cmdline_warnoption',
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'-X', 'cmdline_xoption',
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'-c', 'pass',
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'arg2'],
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'parse_argv': 1,
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'parse_argv': 1,
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'xoptions': [
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'xoptions': [
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'config_xoption1=3',
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'config_xoption1=3',
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@ -872,6 +878,7 @@ def test_preinit_parse_argv(self):
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}
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}
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config = {
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config = {
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'argv': ['script.py'],
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'argv': ['script.py'],
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'_orig_argv': ['python3', '-X', 'dev', 'script.py'],
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'run_filename': os.path.abspath('script.py'),
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'run_filename': os.path.abspath('script.py'),
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'dev_mode': 1,
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'dev_mode': 1,
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'faulthandler': 1,
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'faulthandler': 1,
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@ -886,9 +893,14 @@ def test_preinit_dont_parse_argv(self):
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preconfig = {
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preconfig = {
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'isolated': 0,
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'isolated': 0,
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}
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}
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argv = ["python3",
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"-E", "-I",
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"-X", "dev",
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"-X", "utf8",
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"script.py"]
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config = {
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config = {
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'argv': ["python3", "-E", "-I",
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'argv': argv,
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"-X", "dev", "-X", "utf8", "script.py"],
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'_orig_argv': argv,
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'isolated': 0,
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'isolated': 0,
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}
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}
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self.check_all_configs("test_preinit_dont_parse_argv", config, preconfig,
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self.check_all_configs("test_preinit_dont_parse_argv", config, preconfig,
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@ -967,6 +979,9 @@ def test_init_sys_add(self):
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'ignore:::sysadd_warnoption',
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'ignore:::sysadd_warnoption',
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'ignore:::config_warnoption',
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'ignore:::config_warnoption',
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],
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],
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'_orig_argv': ['python3',
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'-W', 'ignore:::cmdline_warnoption',
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'-X', 'cmdline_xoption'],
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}
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}
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self.check_all_configs("test_init_sys_add", config, api=API_PYTHON)
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self.check_all_configs("test_init_sys_add", config, api=API_PYTHON)
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@ -975,6 +990,7 @@ def test_init_run_main(self):
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'print(json.dumps(_testinternalcapi.get_configs()))')
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'print(json.dumps(_testinternalcapi.get_configs()))')
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config = {
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config = {
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'argv': ['-c', 'arg2'],
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'argv': ['-c', 'arg2'],
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'_orig_argv': ['python3', '-c', code, 'arg2'],
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'program_name': './python3',
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'program_name': './python3',
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'run_command': code + '\n',
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'run_command': code + '\n',
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'parse_argv': 1,
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'parse_argv': 1,
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@ -986,6 +1002,9 @@ def test_init_main(self):
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'print(json.dumps(_testinternalcapi.get_configs()))')
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'print(json.dumps(_testinternalcapi.get_configs()))')
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config = {
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config = {
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'argv': ['-c', 'arg2'],
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'argv': ['-c', 'arg2'],
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'_orig_argv': ['python3',
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'-c', code,
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'arg2'],
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'program_name': './python3',
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'program_name': './python3',
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'run_command': code + '\n',
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'run_command': code + '\n',
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'parse_argv': 1,
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'parse_argv': 1,
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@ -999,6 +1018,7 @@ def test_init_parse_argv(self):
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config = {
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config = {
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'parse_argv': 1,
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'parse_argv': 1,
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'argv': ['-c', 'arg1', '-v', 'arg3'],
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'argv': ['-c', 'arg1', '-v', 'arg3'],
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'_orig_argv': ['./argv0', '-E', '-c', 'pass', 'arg1', '-v', 'arg3'],
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'program_name': './argv0',
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'program_name': './argv0',
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'run_command': 'pass\n',
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'run_command': 'pass\n',
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'use_environment': 0,
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'use_environment': 0,
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@ -1012,6 +1032,7 @@ def test_init_dont_parse_argv(self):
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config = {
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config = {
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'parse_argv': 0,
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'parse_argv': 0,
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'argv': ['./argv0', '-E', '-c', 'pass', 'arg1', '-v', 'arg3'],
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'argv': ['./argv0', '-E', '-c', 'pass', 'arg1', '-v', 'arg3'],
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'_orig_argv': ['./argv0', '-E', '-c', 'pass', 'arg1', '-v', 'arg3'],
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'program_name': './argv0',
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'program_name': './argv0',
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}
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}
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self.check_all_configs("test_init_dont_parse_argv", config, pre_config,
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self.check_all_configs("test_init_dont_parse_argv", config, pre_config,
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@ -1299,10 +1320,17 @@ def test_init_warnoptions(self):
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'faulthandler': 1,
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'faulthandler': 1,
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'bytes_warning': 1,
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'bytes_warning': 1,
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'warnoptions': warnoptions,
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'warnoptions': warnoptions,
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'_orig_argv': ['python3',
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'-Wignore:::cmdline1',
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'-Wignore:::cmdline2'],
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}
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}
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self.check_all_configs("test_init_warnoptions", config, preconfig,
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self.check_all_configs("test_init_warnoptions", config, preconfig,
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api=API_PYTHON)
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api=API_PYTHON)
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def test_get_argc_argv(self):
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self.run_embedded_interpreter("test_get_argc_argv")
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# ignore output
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class AuditingTests(EmbeddingTestsMixin, unittest.TestCase):
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class AuditingTests(EmbeddingTestsMixin, unittest.TestCase):
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def test_open_code_hook(self):
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def test_open_code_hook(self):
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@ -0,0 +1,3 @@
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Export explicitly the :c:func:`Py_GetArgcArgv` function to the C API and
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document the function. Previously, it was exported implicitly which no
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longer works since Python is built with ``-fvisibility=hidden``.
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@ -734,6 +734,7 @@ EXPORTS
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Py_FinalizeEx=python310.Py_FinalizeEx
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Py_FinalizeEx=python310.Py_FinalizeEx
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Py_GenericAlias=python310.Py_GenericAlias
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Py_GenericAlias=python310.Py_GenericAlias
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Py_GenericAliasType=python310.Py_GenericAliasType
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Py_GenericAliasType=python310.Py_GenericAliasType
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Py_GetArgcArgv=python310.Py_GetArgcArgv
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Py_GetBuildInfo=python310.Py_GetBuildInfo
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Py_GetBuildInfo=python310.Py_GetBuildInfo
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Py_GetCompiler=python310.Py_GetCompiler
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Py_GetCompiler=python310.Py_GetCompiler
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Py_GetCopyright=python310.Py_GetCopyright
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Py_GetCopyright=python310.Py_GetCopyright
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@ -1334,6 +1334,7 @@ static int test_init_read_set(void)
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return 0;
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return 0;
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fail:
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fail:
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PyConfig_Clear(&config);
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Py_ExitStatusException(status);
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Py_ExitStatusException(status);
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}
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}
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@ -1592,6 +1593,46 @@ static int test_run_main(void)
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}
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}
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static int test_get_argc_argv(void)
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{
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PyConfig config;
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PyConfig_InitPythonConfig(&config);
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wchar_t *argv[] = {L"python3", L"-c",
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(L"import sys; "
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L"print(f'Py_RunMain(): sys.argv={sys.argv}')"),
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L"arg2"};
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config_set_argv(&config, Py_ARRAY_LENGTH(argv), argv);
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config_set_string(&config, &config.program_name, L"./python3");
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// Calling PyConfig_Read() twice must not change Py_GetArgcArgv() result.
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// The second call is done by Py_InitializeFromConfig().
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PyStatus status = PyConfig_Read(&config);
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if (PyStatus_Exception(status)) {
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PyConfig_Clear(&config);
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Py_ExitStatusException(status);
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}
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init_from_config_clear(&config);
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int get_argc;
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wchar_t **get_argv;
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Py_GetArgcArgv(&get_argc, &get_argv);
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printf("argc: %i\n", get_argc);
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assert(get_argc == Py_ARRAY_LENGTH(argv));
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for (int i=0; i < get_argc; i++) {
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printf("argv[%i]: %ls\n", i, get_argv[i]);
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assert(wcscmp(get_argv[i], argv[i]) == 0);
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}
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Py_Finalize();
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printf("\n");
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printf("test ok\n");
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return 0;
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}
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/* *********************************************************
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/* *********************************************************
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* List of test cases and the function that implements it.
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* List of test cases and the function that implements it.
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*
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*
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@ -1649,6 +1690,7 @@ static struct TestCase TestCases[] = {
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{"test_init_setpythonhome", test_init_setpythonhome},
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{"test_init_setpythonhome", test_init_setpythonhome},
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{"test_init_warnoptions", test_init_warnoptions},
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{"test_init_warnoptions", test_init_warnoptions},
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{"test_run_main", test_run_main},
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{"test_run_main", test_run_main},
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{"test_get_argc_argv", test_get_argc_argv},
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{"test_open_code_hook", test_open_code_hook},
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{"test_open_code_hook", test_open_code_hook},
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{"test_audit", test_audit},
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{"test_audit", test_audit},
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@ -580,7 +580,7 @@ _Py_HashRandomization_Init(const PyConfig *config)
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res = pyurandom(secret, secret_size, 0, 0);
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res = pyurandom(secret, secret_size, 0, 0);
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if (res < 0) {
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if (res < 0) {
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return _PyStatus_ERR("failed to get random numbers "
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return _PyStatus_ERR("failed to get random numbers "
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"to initialize Python");
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"to initialize Python");
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}
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}
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}
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}
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return _PyStatus_OK();
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return _PyStatus_OK();
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@ -548,8 +548,6 @@ _Py_SetArgcArgv(Py_ssize_t argc, wchar_t * const *argv)
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}
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}
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/* Make the *original* argc/argv available to other modules.
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This is rare, but it is needed by the secureware extension. */
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void
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void
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Py_GetArgcArgv(int *argc, wchar_t ***argv)
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Py_GetArgcArgv(int *argc, wchar_t ***argv)
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{
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{
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@ -859,6 +857,7 @@ _PyConfig_Copy(PyConfig *config, const PyConfig *config2)
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COPY_ATTR(pathconfig_warnings);
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COPY_ATTR(pathconfig_warnings);
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COPY_ATTR(_init_main);
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COPY_ATTR(_init_main);
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COPY_ATTR(_isolated_interpreter);
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COPY_ATTR(_isolated_interpreter);
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COPY_WSTRLIST(_orig_argv);
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#undef COPY_ATTR
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#undef COPY_ATTR
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#undef COPY_WSTR_ATTR
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#undef COPY_WSTR_ATTR
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@ -960,6 +959,7 @@ config_as_dict(const PyConfig *config)
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SET_ITEM_INT(pathconfig_warnings);
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SET_ITEM_INT(pathconfig_warnings);
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SET_ITEM_INT(_init_main);
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SET_ITEM_INT(_init_main);
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SET_ITEM_INT(_isolated_interpreter);
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SET_ITEM_INT(_isolated_interpreter);
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SET_ITEM_WSTRLIST(_orig_argv);
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return dict;
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return dict;
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@ -1856,7 +1856,7 @@ config_init_stdio(const PyConfig *config)
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- set Py_xxx global configuration variables
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- set Py_xxx global configuration variables
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- initialize C standard streams (stdin, stdout, stderr) */
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- initialize C standard streams (stdin, stdout, stderr) */
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void
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PyStatus
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_PyConfig_Write(const PyConfig *config, _PyRuntimeState *runtime)
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_PyConfig_Write(const PyConfig *config, _PyRuntimeState *runtime)
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{
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{
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config_set_global_vars(config);
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config_set_global_vars(config);
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@ -1870,6 +1870,13 @@ _PyConfig_Write(const PyConfig *config, _PyRuntimeState *runtime)
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preconfig->isolated = config->isolated;
|
preconfig->isolated = config->isolated;
|
||||||
preconfig->use_environment = config->use_environment;
|
preconfig->use_environment = config->use_environment;
|
||||||
preconfig->dev_mode = config->dev_mode;
|
preconfig->dev_mode = config->dev_mode;
|
||||||
|
|
||||||
|
if (_Py_SetArgcArgv(config->_orig_argv.length,
|
||||||
|
config->_orig_argv.items) < 0)
|
||||||
|
{
|
||||||
|
return _PyStatus_NO_MEMORY();
|
||||||
|
}
|
||||||
|
return _PyStatus_OK();
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
@ -2493,7 +2500,6 @@ PyStatus
|
||||||
PyConfig_Read(PyConfig *config)
|
PyConfig_Read(PyConfig *config)
|
||||||
{
|
{
|
||||||
PyStatus status;
|
PyStatus status;
|
||||||
PyWideStringList orig_argv = _PyWideStringList_INIT;
|
|
||||||
|
|
||||||
status = _Py_PreInitializeFromConfig(config, NULL);
|
status = _Py_PreInitializeFromConfig(config, NULL);
|
||||||
if (_PyStatus_EXCEPTION(status)) {
|
if (_PyStatus_EXCEPTION(status)) {
|
||||||
|
@ -2502,8 +2508,13 @@ PyConfig_Read(PyConfig *config)
|
||||||
|
|
||||||
config_get_global_vars(config);
|
config_get_global_vars(config);
|
||||||
|
|
||||||
if (_PyWideStringList_Copy(&orig_argv, &config->argv) < 0) {
|
if (config->_orig_argv.length == 0
|
||||||
return _PyStatus_NO_MEMORY();
|
&& !(config->argv.length == 1
|
||||||
|
&& wcscmp(config->argv.items[0], L"") == 0))
|
||||||
|
{
|
||||||
|
if (_PyWideStringList_Copy(&config->_orig_argv, &config->argv) < 0) {
|
||||||
|
return _PyStatus_NO_MEMORY();
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
_PyPreCmdline precmdline = _PyPreCmdline_INIT;
|
_PyPreCmdline precmdline = _PyPreCmdline_INIT;
|
||||||
|
@ -2534,11 +2545,6 @@ PyConfig_Read(PyConfig *config)
|
||||||
goto done;
|
goto done;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (_Py_SetArgcArgv(orig_argv.length, orig_argv.items) < 0) {
|
|
||||||
status = _PyStatus_NO_MEMORY();
|
|
||||||
goto done;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Check config consistency */
|
/* Check config consistency */
|
||||||
assert(config->isolated >= 0);
|
assert(config->isolated >= 0);
|
||||||
assert(config->use_environment >= 0);
|
assert(config->use_environment >= 0);
|
||||||
|
@ -2591,11 +2597,11 @@ PyConfig_Read(PyConfig *config)
|
||||||
assert(config->check_hash_pycs_mode != NULL);
|
assert(config->check_hash_pycs_mode != NULL);
|
||||||
assert(config->_install_importlib >= 0);
|
assert(config->_install_importlib >= 0);
|
||||||
assert(config->pathconfig_warnings >= 0);
|
assert(config->pathconfig_warnings >= 0);
|
||||||
|
assert(_PyWideStringList_CheckConsistency(&config->_orig_argv));
|
||||||
|
|
||||||
status = _PyStatus_OK();
|
status = _PyStatus_OK();
|
||||||
|
|
||||||
done:
|
done:
|
||||||
_PyWideStringList_Clear(&orig_argv);
|
|
||||||
_PyPreCmdline_Clear(&precmdline);
|
_PyPreCmdline_Clear(&precmdline);
|
||||||
return status;
|
return status;
|
||||||
}
|
}
|
||||||
|
|
|
@ -460,7 +460,10 @@ pyinit_core_reconfigure(_PyRuntimeState *runtime,
|
||||||
return _PyStatus_ERR("can't make main interpreter");
|
return _PyStatus_ERR("can't make main interpreter");
|
||||||
}
|
}
|
||||||
|
|
||||||
_PyConfig_Write(config, runtime);
|
status = _PyConfig_Write(config, runtime);
|
||||||
|
if (_PyStatus_EXCEPTION(status)) {
|
||||||
|
return status;
|
||||||
|
}
|
||||||
|
|
||||||
status = _PyInterpreterState_SetConfig(interp, config);
|
status = _PyInterpreterState_SetConfig(interp, config);
|
||||||
if (_PyStatus_EXCEPTION(status)) {
|
if (_PyStatus_EXCEPTION(status)) {
|
||||||
|
@ -486,7 +489,10 @@ pycore_init_runtime(_PyRuntimeState *runtime,
|
||||||
return _PyStatus_ERR("main interpreter already initialized");
|
return _PyStatus_ERR("main interpreter already initialized");
|
||||||
}
|
}
|
||||||
|
|
||||||
_PyConfig_Write(config, runtime);
|
PyStatus status = _PyConfig_Write(config, runtime);
|
||||||
|
if (_PyStatus_EXCEPTION(status)) {
|
||||||
|
return status;
|
||||||
|
}
|
||||||
|
|
||||||
/* Py_Finalize leaves _Py_Finalizing set in order to help daemon
|
/* Py_Finalize leaves _Py_Finalizing set in order to help daemon
|
||||||
* threads behave a little more gracefully at interpreter shutdown.
|
* threads behave a little more gracefully at interpreter shutdown.
|
||||||
|
@ -499,7 +505,7 @@ pycore_init_runtime(_PyRuntimeState *runtime,
|
||||||
*/
|
*/
|
||||||
_PyRuntimeState_SetFinalizing(runtime, NULL);
|
_PyRuntimeState_SetFinalizing(runtime, NULL);
|
||||||
|
|
||||||
PyStatus status = _Py_HashRandomization_Init(config);
|
status = _Py_HashRandomization_Init(config);
|
||||||
if (_PyStatus_EXCEPTION(status)) {
|
if (_PyStatus_EXCEPTION(status)) {
|
||||||
return status;
|
return status;
|
||||||
}
|
}
|
||||||
|
@ -746,8 +752,6 @@ pyinit_config(_PyRuntimeState *runtime,
|
||||||
PyThreadState **tstate_p,
|
PyThreadState **tstate_p,
|
||||||
const PyConfig *config)
|
const PyConfig *config)
|
||||||
{
|
{
|
||||||
_PyConfig_Write(config, runtime);
|
|
||||||
|
|
||||||
PyStatus status = pycore_init_runtime(runtime, config);
|
PyStatus status = pycore_init_runtime(runtime, config);
|
||||||
if (_PyStatus_EXCEPTION(status)) {
|
if (_PyStatus_EXCEPTION(status)) {
|
||||||
return status;
|
return status;
|
||||||
|
|
Loading…
Reference in a new issue