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bpo-40910: Export Py_GetArgcArgv() function (GH-20721)

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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().
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Victor Stinner 2020-06-08 18:12:59 +02:00 • committed by GitHub
parent 8f023a2f66
commit e81f6e687d
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10 changed files with 131 additions and 22 deletions
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16
Include/cpython/initconfig.h
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@ -411,6 +411,14 @@ typedef struct {
/* If non-zero, disallow threads, subprocesses, and fork.
Default: 0. */
int _isolated_interpreter;
/* Original command line arguments. If _orig_argv is empty and _argv is
not equal to [''], PyConfig_Read() copies the configuration 'argv' list
into '_orig_argv' list before modifying 'argv' list (if parse_argv
is non-zero).
_PyConfig_Write() initializes Py_GetArgcArgv() to this list. */
PyWideStringList _orig_argv;
} PyConfig;
PyAPI_FUNC(void) PyConfig_InitPythonConfig(PyConfig *config);
@ -436,5 +444,13 @@ PyAPI_FUNC(PyStatus) PyConfig_SetWideStringList(PyConfig *config,
PyWideStringList *list,
Py_ssize_t length, wchar_t **items);
/* --- Helper functions --------------------------------------- */
/* Get the original command line arguments, before Python modified them.
See also PyConfig._orig_argv. */
PyAPI_FUNC(void) Py_GetArgcArgv(int *argc, wchar_t ***argv);
#endif /* !Py_LIMITED_API */
#endif /* !Py_PYCORECONFIG_H */