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bpo-32030: _PyPathConfig_Init() sets home and program_name (#4673)

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_PyPathConfig_Init() now also initialize home and program_name:

* Rename existing _PyPathConfig_Init() to _PyPathConfig_Calculate().
  Add a new _PyPathConfig_Init() function in pathconfig.c which
  handles the _Py_path_config variable and call
  _PyPathConfig_Calculate().
* Add home and program_name fields to _PyPathConfig.home
* _PyPathConfig_Init() now initialize home and program_name
  from main_config
* Py_SetProgramName(), Py_SetPythonHome() and Py_GetPythonHome() now
  calls Py_FatalError() on failure, instead of silently ignoring
  failures.
* config_init_home() now gets directly _Py_path_config.home to only
  get the value set by Py_SetPythonHome(), or NULL if
  Py_SetPythonHome() was not called.
* config_get_program_name() now gets directly
  _Py_path_config.program_name to only get the value set by
  Py_SetProgramName(), or NULL if Py_SetProgramName() was not called.
* pymain_init_python() doesn't call Py_SetProgramName() anymore,
  _PyPathConfig_Init() now always sets the program name
* Call _PyMainInterpreterConfig_Read() in
  pymain_parse_cmdline_envvars_impl() to control the memory allocator
* C API documentation: it's no more safe to call Py_GetProgramName()
  before Py_Initialize().
This commit is contained in:
Victor Stinner 2017-12-02 10:11:32 +01:00 • committed by GitHub
parent e23c06e2b0
commit af5a895073
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8 changed files with 184 additions and 101 deletions
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7
Python/pylifecycle.c
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@ -804,7 +804,12 @@ _PyMainInterpreterConfig_Read(_PyMainInterpreterConfig *config)
}
if (config->program_name == NULL) {
config->program_name = _PyMem_RawWcsdup(Py_GetProgramName());
#ifdef MS_WINDOWS
const wchar_t *program_name = L"python";
#else
const wchar_t *program_name = L"python3";
#endif
config->program_name = _PyMem_RawWcsdup(program_name);
if (config->program_name == NULL) {
return _Py_INIT_NO_MEMORY();
}