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bpo-34170: Add _Py_InitializeFromConfig() (GH-8454)

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* If _Py_InitializeCore() is called twice, the second call now copies
  and apply (partially) the new configuration.
* Rename _Py_CommandLineDetails to _PyCmdline
* Move more code into pymain_init(). The core configuration created
  by Py_Main() is new destroyed before running Python to reduce the
  memory footprint.
* _Py_InitializeCore() now returns the created interpreter.
  _Py_InitializeMainInterpreter() now expects an interpreter.
* Remove _Py_InitializeEx_Private(): _freeze_importlib now uses
  _Py_InitializeFromConfig()
* _PyCoreConfig_InitPathConfig() now only computes the path
  configuration if needed.
This commit is contained in:
Victor Stinner 2018-07-25 02:49:17 +02:00 • committed by GitHub
parent 6cf8255912
commit 1dc6e3906a
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6 changed files with 305 additions and 208 deletions
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18
Programs/_freeze_importlib.c
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@ -74,14 +74,20 @@ main(int argc, char *argv[])
}
text[text_size] = '\0';
Py_NoUserSiteDirectory++;
Py_NoSiteFlag++;
Py_IgnoreEnvironmentFlag++;
_PyCoreConfig config = _PyCoreConfig_INIT;
config.user_site_directory = 0;
config.site_import = 0;
config.ignore_environment = 1;
config.program_name = L"./_freeze_importlib";
/* Don't install importlib, since it could execute outdated bytecode. */
config._install_importlib = 0;
config.install_signal_handlers = 1;
Py_FrozenFlag++;
Py_SetProgramName(L"./_freeze_importlib");
/* Don't install importlib, since it could execute outdated bytecode. */
_PyInitError err = _Py_InitializeEx_Private(1, 0);
_PyInitError err = _Py_InitializeFromConfig(&config);
/* No need to call _PyCoreConfig_Clear() since we didn't allocate any
memory: program_name is a constant string. */
if (_Py_INIT_FAILED(err)) {
_Py_FatalInitError(err);
}